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").

Fact1: if gas is heated then that gas will expand, Fact2: An increase in temperature causes a gas to expand., Question: what affects a gas? (A) electricity (B) kinetic energy (C) temperature (D) Evaporation (E) salinity (F) Pollution (G) wind (H) magnetism
C

Fact1: Some touch receptors sense differences in temperature or pain., Fact2: Touch receptors are free nerve endings or nerve endings that are surrounded by a capsule., Question: What senses differences in temperature? (A) the skin (B) Electric devices (C) animals (D) an electric stove (E) nerve endings (F) an organism's body (G) Most plants (H) peachleaf willow
E

Fact1: Fertilization occurs when a sperm and an egg fuse to form a diploid zygote., Fact2: Penetration is when the sperm and egg meet and the sperm makes it way into the egg cytoplasm., Question: what requires penetration? (A) gravity (B) weathering (C) gastropod shells (D) the skin (E) an object (F) death (G) Veins and arteries. (H) fertilization

H