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: knowledge of the stars can be used to navigate, Fact2: Of course, astronomers also study stars., Question: What can be used to navigate? (A) music (B) backbones (C) astrology (D) cilia (E) magic (F) sponges (G) astronomy (H) lamphreys
answer:
G


question:
Fact1: Streams may start with runoff or water seeping out of a spring., Fact2: Streams A stream is a sequence of characters., Question: a sequence of characters may start with runoff or what seeping out of a spring? (A) sodium (B) Joules (C) liquid (D) rivers (E) solutes (F) water (G) rain (H) SO2
answer:
F


question:
Fact1: harming an animal species has a negative impact on the population size of that species, Fact2: Rarity in plants and animals frequently manifests itself in small or reduced population size., Question: if a species is rare, harm to it's population increases or decreases? (A) drought (B) Pesticides (C) constant (D) increases (E) stays the same (F) influenza (G) deforestation (H) decreases
answer:

D