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: Some parasites live on the surface of their host., Fact2: Leeches are external parasites., Question: What unwanted creature would be found on the surface of a human body using it as a host?  (A) Tapeworm. (B) Leeches. (C) Pesticides (D) animals (E) insects (F) Hookworm (G) bacteria (H) Bracelet.

Ex Output:
B


Ex Input:
Fact1: Molecules of DNA are encoded with instructions that tell cells what to do., Fact2: Genes, made of DNA, carry the instructions for building proteins., Question: what do genes carry? (A) pollen (B) Energy (C) calories (D) instructions (E) Chemical energy (F) fat (G) acid (H) colors

Ex Output:
D


Ex Input:
Fact1: extreme heat and pressure change rock into metamorphic rock, Fact2: Marble Marble is a metamorphic rock., Question: What can extreme heat pressure create?  (A) movement (B) engines (C) warmth (D) mines (E) Marble. (F) an object (G) forces (H) sweating

Ex Output:

E