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: Evolution occurs in response to a change in the environment., Fact2: Evolution Evolution is the changing pattern of life forms., Question: what happens in response to change in environment? (A) Plant growth is reduced (B) the wearing away of rock (C) lifeforms change their pattern (D) antimatter (E) density changes (F) Warm air moving into cold air (G) erosion from rivers (H) gravity changes
answer:
C


question:
Fact1: Evolution is a change in the characteristics of living things over time., Fact2: Trees are the largest of living things., Question: Evolution changes the characteristics of what over time? (A) the Moon (B) Man (C) life (D) trees (E) rocks (F) the Sun (G) humans (H) plants
answer:
D


question:
Fact1: Organisms cluster around hydrothermal vents in the ocean floor., Fact2: Background Hot water vents form inside cracks in the ocean floor., Question: What do organisms cluster around, in the ocean floor? (A) cracks (B) chemicals (C) limestone (D) crust (E) headaches (F) Nutrients (G) horses (H) dogs
answer:

A