instruction:
In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
question:
A star produces light energy and heat because it has a variety of (A) moon rotation causing friction (B) light energy flowing to earth (C) reactions of nuclear form (D) global warming caused by co2
answer:
C


question:
Gas can fill any container it is given, and liquid (A) is standard weight and size (B) is the opposite of variable (C) only needs a few (D) uses what it needs
answer:
D


question:
To encourage population growth in an area (A) dry out any water sources (B) add another water feature (C) plant more toxic flowers (D) kill off any prey
answer:

B