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: Cancer is a disease in which cells divide out of control., Fact2: Chemotherapy works on cells that are dividing., Question: What helps stop cells multiplying in cancer? (A) the skin (B) Honey (C) sweating (D) Chemotherapy (E) H2O (F) Chemical energy (G) Titanium (H) bioaerosols

Ex Output:
D


Ex Input:
Fact1: an animal usually requires a warm body temperature for survival, Fact2: Mammals are also warm-blooded and are covered with hair or fur., Question: What helps maintain body temperature? (A) hats (B) Lift (C) the inside of a refrigerator (D) fur (E) skin (F) arctic winds (G) freezing water (H) hair

Ex Output:
D


Ex Input:
Fact1: a fire requires oxygen to burn, Fact2: There is no "gaseous" oxygen on the Moon and the Moon itself is bone dry., Question: Where is a fire least likely to start? (A) kalenchoes (B) a forest (C) a fireplace (D) soft soil (E) dormant (F) the Moon (G) a wood pile (H) rivers slow

Ex Output:

F