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: To replenish the shade in a city that had been provided by trees that were felled by a storm: (A) grow gills and live on a raft (B) use a large lawn mower (C) get out your weed whacker (D) introduce replacement timber items
Example Output: D

Example Input: When the amount of food goes down, the amount of conflict between the organisms searching for it will (A) nothing. (B) remain the same (C) go down (D) go up
Example Output: D

Example Input: Northern countries have extensive erosion due to (A) glacial liquification (B) cola mining (C) more frequent tornadoes (D) meteors
Example Output:
A