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: lungs are used for breathing air by land animals, Fact2: Elephants are the largest animals on land., Question: What uses lungs for breathing air? (A) rocks (B) some mammals (C) Frogs (D) monotremes (E) humans (F) bacteria (G) elephants (H) oak trees

Ex Output:
G


Ex Input:
Fact1: wiring requires an electrical conductor, Fact2: Wires connected to a source of electricity., Question: An electrical conductor is required for the operation of: (A) water current (B) electricity (C) satellites (D) energy (E) to move people (F) gas lamps (G) trains (H) lightning

Ex Output:
B


Ex Input:
Fact1: plasma is formed by electrons separating from atoms in stars, Fact2: Plasma Is the liquid portion of the blood., Question: What is the liquid portion of the blood formed by? (A) Evaporation of water (B) basic building blocks of life (C) flow of electrons (D) Veins and arteries. (E) electrons separatin from atoms (F) Something made from fermented ricce (G) circulatory systems (H) heat production

Ex Output:

E