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: rain causes erosion, Fact2: Erosion of dunes leads to erosion of the beach and of the Island., Question: What can destroy dunes? (A) wind (B) fire (C) turtles (D) storms (E) clams (F) heat (G) rain (H) grain

Ex Output:
G


Ex Input:
Fact1: an animal usually requires a warm body temperature for survival, Fact2: Squirrels hide and sleep in a secret warm place all winter., Question: What requires hiding and sleeping for survival? (A) bacteria (B) rice (C) amphibians (D) organisms (E) Frogs (F) trees (G) humans (H) animals

Ex Output:
H


Ex Input:
Fact1: Animals are a kingdom of multicellular eukaryotes., Fact2: All plants are eukaryotes., Question: What are plants and animals? (A) absorb light energy (B) bacteria (C) important habitats (D) produce light (E) prokaryotes (F) multicellular (G) insects (H) air

Ex Output:

F