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: Most amphibians breathe with gills as larvae and with lungs as adults., Fact2: All frogs are amphibians., Question: What do frogs breathe with when they are adults? (A) skin (B) fins (C) lungs (D) oxygen (E) gills (F) air (G) Energy (H) Gases

Answer: C


Question: Fact1: if fossils of an animal or plant are found in a place then that animal or plant used to live in that place, Fact2: Fossils are the remains of prehistoric life., Question: What found in a place shows that animal or plant used to live in that place? (A) remains (B) Echinoids (C) dirt (D) Earthworms (E) unique (F) an image (G) rocks (H) water

Answer: A


Question: Fact1: Population density is the average number of individuals per unit of area or volume., Fact2: Density is the population divided by the area., Question: What is the average number of individuals per unit of area or volume? (A) population divided by class (B) population divided by area (C) solid, liquid, gas (D) biological diversity (E) competing for resources (F) population divided by income (G) population divided by wealth (H) Something that makes plants green

Answer:
B