Tracks the location, movement, and amount of precipitation in storms

#1) Tracks the location, movement, and amount of precipitation in storms
The answer is Weather Radar. Weather Radar or also called weather surveillance radar (WSR) is a type of radar used to locate precipitation, calculate its motion, and estimate its type like rain, snow, hail etc. Modern weather radars are capable of detecting the motion of rain droplets in addition to the intensity of the precipitation. Both types of data can be analyzed to determine the structure of storms and their potential to cause severe weather

What are the following resources?

The answer i think is d