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: satellites are used to take images from space, Fact2: Images of Earth taken from space., Question: Images of Earth are taken by (A) satellites (B) light (C) Communication (D) millions (E) radar (F) Plate tectonics (G) moving plates (H) lamphreys
Example Output: A

Example Input: Fact1: staying warm has a positive impact on an animal 's survival, Fact2: Furry animals grow thicker coats to keep warm in the winter., Question: Furry animals grow thicker coats which has what impact on their survival? (A) heat (B) positive (C) negative (D) energy (E) ironic (F) Energy. (G) decreased (H) adding heat
Example Output: B

Example Input: Fact1: Birth may be followed by a period of parental care of the offspring., Fact2: Each birth is as unique as the child that is born., Question: What usually happens after a child is born? (A) Parents get ultrasounds (B) Parents bury the child (C) ejaculate is carried (D) Parents take care of the child (E) last stage before adulthood (F) Parents abandon the child (G) antigens that cause allergy (H) sexually maturity
Example Output:
D