In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Ex Input:
Fact1: a battery converts chemical energy into electrical energy, Fact2: Check the fire alarm's batteries the first of each month., Question: What converts chemical energy into electrical energy? (A) Something in a fire alarm (B) sperm and egg fuse (C) Males and females (D) igniting fuel and oxidiser (E) The bending of a ray of light (F) basic building blocks of life (G) sensory neurons (H) mechanical waves

Ex Output:
A


Ex Input:
Fact1: Mollusks live in most terrestrial, freshwater, and marine habitats., Fact2: Though most trout are freshwater fish, some live in marine waters., Question: What do some mollusks live near? (A) gills (B) rivers (C) desert (D) roads (E) fungi (F) trout (G) clouds (H) water

Ex Output:
F


Ex Input:
Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: Another sign of global warming is a hole in the ozone layer over Antarctica., Question: Global warming has created an ozone what? (A) layer (B) hole (C) heat (D) film (E) death (F) gas (G) documentary (H) stormy

Ex Output:

B