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: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Harbor seals, like sea lions, have evolved to utilize a layer of fat called blubber., Question: How do sea lions keep warm? (A) protected (B) warm (C) Swimming fast (D) Sleeping (E) hydration (F) Blubber (G) four limbs (H) Eating a lot of fish

A: F
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Q: Fact1: rain causes erosion, Fact2: Erosion of dunes leads to erosion of the beach and of the Island., Question: What can destroy dunes? (A) wind (B) fire (C) turtles (D) storms (E) clams (F) heat (G) rain (H) grain

A: G
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Q: Fact1: Lymph is a fluid that leaks out of capillaries into spaces between cells., Fact2: System consists of lymph capillaries, lymph veins and lymph nodes., Question: where is lymph located? (A) surface (B) osculum (C) skin (D) veins (E) bones (F) Testes (G) nodes (H) brain

A:
G
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