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: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Vines are perennial, deciduous climbing plants., Question: What sheds their leaves seasonally each year? (A) camels (B) oak (C) Spruce (D) fens (E) Trees (F) burrs (G) apples (H) vines
Example Output: H

Example Input: Fact1: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: what generally carries deoxygenated blood? (A) blood vessels (B) animals (C) layers of fat (D) mammals (E) critical organs (F) an organism's body (G) elephants (H) athletes
Example Output: A

Example Input: Fact1: a wildfire changes an ecosystem drastically, Fact2: Forest ecosystems are dynamic and ever changing., Question: What can change a forest drastically? (A) light snow (B) erosion (C) destruction (D) wildfire (E) birds (F) fires (G) oak tree (H) rain
Example Output:
D