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: Active immunity results when an immune response to a pathogen produces memory cells., Fact2: Vaccination is Active Acquired Immunity., Question: What results when an immune response to a pathogen produces memory cells? (A) anemia (B) vaccination (C) kill them (D) competition (E) lie detectors (F) rapid expansion (G) killing insects (H) it needs them

Ex Output:
B


Ex Input:
Fact1: Cancer is a disease that occurs when the cell cycle is no longer regulated., Fact2: Metastatic cancer is cancer that has spread., Question: a disease that can be metastic occurs when the cell cycle is regulated how often? (A) often (B) no less (C) forever (D) Leptospirosis (E) illness (F) heat or cold (G) no longer (H) electrically

Ex Output:
G


Ex Input:
Fact1: Aggression is behavior that is intended to cause harm or pain., Fact2: Behaviorally, aggression is any behavior whose intent is to intimidate or harm another animal., Question: what harms others? (A) aggression (B) cells (C) smoking tobacco (D) water (E) smoking (F) killing insects (G) oxygen (H) cigarettes

Ex Output:

A