instruction:
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").
question:
Fact1: Skin color is another polygenic trait., Fact2: Most dental variations are polygenic, that is controlled by several genes., Question: Skin color is a trait controlled by what? (A) prokaryotic cells (B) one gene (C) enzymes (D) keratin (E) one's descendants (F) several genes (G) the environment (H) a single gene
answer:
F


question:
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
answer:
D


question:
Fact1: a planet rotating causes cycles of day and night on that planet, Fact2: Mars has day and night for the same reasons that Earth has day and night., Question: Mars is known to  (A) have no polar regions (B) rotate (C) migrate (D) cold (E) have areas that are always in sunlight (F) have running water (G) Rise (H) expand
answer:

B