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: 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: Oncogenes promote the division of cells with damaged DNA., Fact2: Oncogenes are genes that promote division., Question: genes that promote division do so with what? (A) Most plants (B) damaged DNA (C) peachleaf willow (D) Plants growth (E) Animal survival (F) Chemical energy (G) Change colors (H) Microscope
Example Output: B

Example Input: Fact1: a vehicle is used for travel, Fact2: All travel requires navigation in some form or another., Question: A vehicle in use requires (A) specialized (B) strength (C) Communication (D) navigation (E) drinking water (F) heating (G) backbones (H) melanin amount
Example Output:
D