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: Hormones are chemical messengers that control many body functions., Fact2: Growth hormone is in many ways an anti-aging hormone., Question: What controls anti-aging? (A) A computer (B) air (C) chemical messengers (D) ice (E) an electric stove (F) Electrical energy (G) water (H) Chemical energy

Ex Output:
C


Ex Input:
Fact1: predicting weather requires studying weater, Fact2: Meteorologists try to predict the weather., Question: What do meteorologists study? (A) Meatballs (B) amount of heat (C) Meteors (D) The weather. (E) related organisms (F) Music (G) air masses (H) Seisometers

Ex Output:
D


Ex Input:
Fact1: a mold spore has a negative impact on the respiratory system, Fact2: Spores are distributed by the wind., Question: The wind has a negative impact on what? (A) the respiratory system (B) agriculture (C) most organisms (D) members of their own species (E) movements in the earth's crust (F) they body they live in (G) energy usage (H) one celled organisms

Ex Output:

A