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: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Glass insulation keeps beverage warm for hours., Question: What keeps mammals warm? (A) evaporation (B) Animal fur (C) staying warm (D) sweating (E) They have thick fur (F) with their fur (G) a layer of fat (H) Veins and arteries.
answer:
G


question:
Fact1: freezing means changing from a liquid into a solid by reducing heat energy, Fact2: Frostbite is the freezing of body parts., Question: What is one result of reducing the heat energy of body parts? (A) dehydration (B) An uncomfortably hot sensation (C) Frostbite (D) layers of fat (E) anemia (F) Sweating (G) Weight (H) Muscle growth
answer:
C


question:
Fact1: Most invertebrates have a more complex nervous system., Fact2: Invertebrates are animals without a backbone., Question: what mostly have a more complex nervous system? (A) nerve cells (B) protist (C) animals without backbone (D) remains of prehistoric life (E) members of their own species (F) sensory neurons (G) Veins and arteries. (H) bacteria
answer:

C