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").

Example Input: If I wanted to make something move faster I could (A) slow it down (B) stomp on it (C) stop it (D) roll it
Example Output: D

Example Input: Which is most accurate? (A) dams can capture powerful gusts and harness their power (B) windmills can capture lightning bolts and harness their power (C) dams can capture lightning bolts and harness their power (D) windmills can capture powerful gusts and harness their power
Example Output: D

Example Input: What part of the backyard is cooler than the other parts? (A) the part by the fence (B) the part with the grass (C) the part by the pool (D) the part by the oak tree
Example Output:
D