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:
In order for trees to use sunlight they must (A) their roots (B) the light switch (C) CPR (D) respire
answer:
D


question:
What does gravity cause substances on a planet? (A) things to move sideways (B) things to be moved upwards (C) things to descend to the lowest surface possible (D) things to stay in the same place
answer:
C


question:
I can use a microscope to (A) Look at an elephant (B) Look at the sun shine (C) Watch a mouse eat food (D) see the pores in a plant
answer:

D