What is the purpose of identifying key points in a piece of writing?

a. this will the reader write a similar paper about the same topic and idea.
b. this will teach the reader how to do the things described in the document.
c. this will encourage the reader to create a list of interesting facts learned from reading.
d. this will the reader organize the information and find the central idea.

i think it might be letter d. but i want to check my answer through some .

What is the problem with the following sentence: cameron, who has an extreme and unreasonable suspicion of other people and their motives, suffers from paranoia which is a psychological disorder characterized by delusions of persecution or grandeur, was absolutely sure that someone was following him even though he was absolutely alone and hadn't seen a car for miles and miles.

Iwill only mark brainliest if you get it correct. read the following prompt and type your response in the space provided. examine the diagram and text: you see water all around you every day as lakes, rivers, ice, rain and snow. there are also vast amounts of water that are unseen—water existing in the ground. and even though groundwater is unseen, it is moving below your feet right now. as part of the water cycle, groundwater is a major contributor to flow in many streams and rivers and has a strong influence on river and wetland habitats for plants and animals. people have been using groundwater for thousands of years and continue to use it today, largely for drinking water and irrigation. life on earth depends on groundwater just as it does on surface water. there are rivers flowing below our feet … a myth? have you ever heard that there are rivers of water flowing underground? do you think it’s true? actually, it is pretty much a myth. even though there are some caverns, lava, and ice tubes, and horizontal springs that can carry water, the vast majority of underground water occupies the space between rocks and subsurface material. some rivers, such as the alpha river in northern florida, usa, can disappear underground during low flow periods. generally, water underground is more like water in a sponge. it occupies the space is between soil and rock particles. at a certain depth below the land surface, the spaces between the soil and rock particles can be totally filled with water, resulting in an aquifer from which groundwater can be pumped into used by people. courtesy of the u. s. geological survey is there missing or extraneous information in this diagram? are all of the details in the text relevant and accurate? explain using details from the text.

Read sentence 13 from the draft. some plants retain a great deal of their foliage through much of the spring and summer, but the leaves do not retain their green color for long. which detail would be best to add after sentence 13 to develop the topic? a. since the green color of the leaves that are bright and abundant during the warmer months will disappear by the time it is fall, it is important that the leaves are trimmed and kept freshly cut so that they will last for as long as possible. b. while the temperature outside may dictate when the fall colors of leaves appear, it is only one of many environmental factors that play a part in the changing of colors from green leaves to fall-colored leaves during the cooler months. c. if people want to enjoy the green color of leaves longer, trees should be planted where the environment is warmer and the days longer because chlorophyll in the leaves can only be manufactured and replaced with sunlight and warmth. d. the green chlorophyll normally masks the fall-colored pigments during the warmer months, but as sunlight becomes less abundant and trees become frozen, the fall colors of leaves become more visible as chlorophyll disappears.