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:
Plants derive what from soil? (A) pollination and germination (B) life sustaining substances (C) roots and oxygen (D) oxygen and argon
answer:
B


question:
Using mirrors to focus collected light from heavenly bodies allows (A) detailed observation (B) foregone conclusions (C) radiation experiments (D) celestial music
answer:
A


question:
A footprint in a rock may have been from (A) new rock formation (B) a random break (C) an optical illusion (D) very long ago
answer:

D