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: condensing means changing from a gas into a liquid by reducing heat energy, Fact2: Heat energy is measured in calories., Question: Calories measure the energy that leaves a gas to form what? (A) nutrients (B) burning (C) warmth (D) H20 (E) ligt (F) liquid (G) store (H) movement

Ex Output:
F


Ex Input:
Fact1: Evolution occurs by a process called natural selection., Fact2: Adaptation is the result of natural selection., Question: What leads to evolution? (A) Plants growth (B) competition (C) Adatation (D) our star (E) Experimentation (F) Stagnation (G) environment (H) Information

Ex Output:
C


Ex Input:
Fact1: Mutations may change the structure of a chromosome or just change a single nucleotide., Fact2: Chromosomal abnormalities can be examined by chromosome analysis., Question: Which process of gene abnormalities can mutations be detected? (A) A computer (B) ligt (C) analysis (D) radiation (E) electrically (F) negative (G) Microscope (H) illness

Ex Output:

C