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 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

Ex Output:
D


Ex Input:
Thick feathers can be used for (A) climbing, cracking nuts and peeling fruit skins. (B) courtship and looking for food (C) killing prey, preening and feeding young (D) staying weatherproof, flexible and free of bacteria

Ex Output:
D


Ex Input:
Cycles of day and night occur how often in a day? (A) 5 times (B) singular instances (C) forty times (D) once a year

Ex Output:

B