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: Photosynthesis features (A) single celled organisms (B) humans (C) cats (D) fish
Example Output: A

Example Input: During the rainy season in a city, the amount of sunlight in the city will (A) stay the same (B) decrease (C) expand (D) increase
Example Output: B

Example Input: when it turns day and night on a planet, what cause this? (A) the sun goes to take a rest in a different place (B) the world itself spins, causing it (C) the moon causes this to happen (D) the planet puts off the lights
Example Output:
B