Instructions: 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").
Input: A lot more sunlight is getting through to the forest floor in the summer than the summer before. (A) a lumber company got resources from the forest (B) the sun is a lot brighter than the year before (C) A piece of the sun has been placed on the forest floor (D) mirrors have been placed in the tree tops by squirrels
Output:
A