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").

Example Input: Fact1: Some touch receptors sense differences in temperature or pain., Fact2: Touch receptors are a type of mechanoreceptor., Question: some mechanoreceptors sense what in temperature? (A) Energy (B) Energy. (C) hunger (D) pain (E) differences (F) kinetic energy (G) heat energy (H) similarities
Example Output: E

Example Input: Fact1: if a living thing becomes too cold then that living thing will die, Fact2: Plants are also the oldest living things., Question: what dies if it becomes too cold? (A) plants (B) starfish (C) trout (D) planets (E) trees (F) ice (G) bears (H) clouds
Example Output: A

Example Input: Fact1: satellites are used to take images from space, Fact2: Meteorologists employ images from satellites to help forecast the weather., Question: Which of the following is a source of key meteorological data for forecasting (A) precipitation (B) asteroids (C) Communication (D) the Hubble telescope (E) parkas (F) satellites (G) seasonal (H) melanin amount
Example Output:
F