PLZZZ HELPPP WILL GIVE BRSAINLIES Which sentence could be added after sentence 12 to support the ideas in the second paragraph?
A.
Many astronomers prefer to use ground-based telescopes because they are more accurate.
B.
The Hubble telescope is one of the most expensive projects ever undertaken by NASA.
C.
Anyone who studies space can be considered an astronomer and apply for a job at NASA.
D.
The scientists study the colors of light from a star to learn more about its properties.

the text-

(1) The Hubble Space Telescope is as large as a school bus and is full of important equipment. (2) This includes mirrors, computers, and imaging instruments. (3) There are also pointing and control mechanisms. (4) The telescope's solar panels generate electricity. (5) Its antennas make it possible to communicate with Earth.
(6) Unlike ground-based telescopes, hubble's astronomers cannot look through its lens to see the universe. (7) Instead, Hubble's scientific instruments serve as the astronomers' eyes. (8) These instruments include cameras and spectrographs. (9) The cameras use electronic detectors much like those used in home video cameras. (10) The spectrographs act as prisms. (11) They collect data by separating starlight into its rainbow of colors. (12) The data can be very valuable to astronomers.
(13) Hubble must maintain a steady position to produce clear images of distant or faint objects. (14) To accomplish this mission, the telescope must battle such celestial elements as air, atmospheric drag the sun's radiation, and the pull of gravity.
(15) For Hubble, maintaining proper direction is not easy. (16) It is like a sailor fighting the wind and water to keep his or her sailboat on course. (17) Hubble is successful because of it's pointing control system. (18) If movement occurs, the constantly rotating wheels change speeds. (19) The telescope moves smoothly back into position.
(20) Hubble gathers pictures and data on objects in space. (21) Then its computers turn the information into long strings of numbers which are beamed to Earth as radio signals. (22) Then the numbers are turned back into pictures and data.
(23) The information collected daily by Hubble is stored on optical computer disks. (24) A single day's worth of observations would fill an encyclopedia. (25) The constantly growing collection of Hubble pictures and data is a unique scientific resource for current and future astronomers.