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").

Input: Consider 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

Output: A


Input: Consider Input: Fact1: Playing is one way mammals and other animals learn how to behave., Fact2: Opossums are a type of mammal called marsupials., Question: what plays to learn how to behave? (A) opossums (B) humans (C) people (D) fish (E) exercise (F) ants (G) h2o (H) catabolism

Output: A


Input: Consider Input: Fact1: a greenhouse is used to protect plants from the cold, Fact2: A greenhouse is made entirely of glass., Question: What can be used to protect plants from the cold? (A) ice (B) fibers (C) metal (D) peat (E) keratin (F) oil (G) glass (H) snow


Output: G