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: 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

Ex Output:
A


Ex Input:
Fact1: disease has a negative impact on an organism, Fact2: Organisms or living beings are literally things that are alive., Question: Disease has what kind of effect on a living being? (A) it has a negative effect (B) Abnormal cell growth (C) direct damage to the lungs (D) it helps living beings eat (E) it makes living beings faster (F) it is good for living beings (G) cause their death (H) Plant growth is reduced

Ex Output:
A


Ex Input:
Fact1: Bottleneck effect occurs when a population suddenly gets much smaller., Fact2: Genetic variation can be reduced by random genetic drift, population bottlenecks, founder effect., Question: What can be reduced when a population suddenly gets much smaller? (A) Pollution (B) The size of the Earth (C) Greenhouse gasses (D) The size of bottlenecks (E) The size of the environment (F) Genetic variation (G) Plant growth is reduced (H) Quality of life

Ex Output:

F