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").
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Question: Fact1: Playing is one way mammals and other animals learn how to behave., Fact2: Opossums are a type of mammal called marsupials., Question: what plays to learn how to behave? (A) opossums (B) humans (C) people (D) fish (E) exercise (F) ants (G) h2o (H) catabolism

Answer: A


Question: Fact1: the mass of a planet causes the pull of gravity on that planet, Fact2: Well, weight is the force on a object caused by gravity trying to pull the object down., Question: The mass of a planet causes the what? (A) harmful substances (B) global warming (C) weight of objects (D) It gets heated up (E) heat energy (F) to move people (G) kinetic energy (H) flow of electrons

Answer: C


Question: Fact1: Male dogs use pheromones in urine to mark their territory., Fact2: Pheromones are hormones that are thought to stimulate, through smell, sexual reactions in animals., Question: What do male dogs use to mark their territory? (A) smell (B) H 2 O (C) love (D) intuition (E) gourdin (F) tongue (G) sight (H) fur

Answer:
A