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").

[EX Q]: You can use what to fake sunlight for plants? (A) love (B) a flash light (C) breathing (D) water
[EX A]: B

[EX Q]: heat and pressure change the remains of what into natural gas? (A) leaves (B) cans (C) books (D) cars
[EX A]: A

[EX Q]: What is an example of runoff? (A) A farm being irrigated (B) Water running from a farm into Lake Huron (C) Rainwater soaking into the ground (D) Water condensing to form dew
[EX A]:
B