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: some animals' fur grows thicker for staying warm in the winter, Fact2: During winter, their hollow fur absorbs much heat as they sun themselves., Question: hollow fur keeps animals what (A) fats (B) camouflaged (C) safe (D) warm (E) cooled (F) liquid (G) live (H) from drowning
[A]: D


[Q]: Fact1: a light bulb is used for seeing in the dark, Fact2: Conventional light bulbs generate light by heating a filament., Question: What is helpful for seeing in the dark? (A) an electron microscope (B) an electron lens (C) microscope (D) closing the blinds (E) blackouts (F) closing your eyes (G) focusing a lens (H) heating a filament
[A]: H


[Q]: Fact1: Cancer cells divide more often than normal cells, and grow out of control., Fact2: Cancer can cause death., Question: what can occur when cells divide more often than normal cells and grow out of control (A) respiration (B) cell walls (C) loss (D) procreation (E) death (F) anemia (G) fever (H) disease
[A]:
E