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").

[Q]: 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
[A]: F


[Q]: Fact1: sandpaper is used to smooth wooden objects, Fact2: All objects, even wooden tables, are made up of molecules which vibrate to create their mass., Question: What can be used to smooth a table? (A) Wax paper (B) Sponge (C) lamphreys (D) Tissue (E) Sandpaper (F) scratching it (G) keratin (H) tiny hairs
[A]: E


[Q]: Fact1: a gasoline lawn mower converts gasoline into motion, Fact2: Gasoline is made up of hydrocarbons., Question: a lawn mower converts _  into motion (A) kinetic energy (B) flow of electrons (C) hydrocarbons (D) energy (E) Greenhouse gasses (F) heat energy (G) fossil fuels (H) Greenhouse gases
[A]:
C