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").

[EX 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
[EX A]: F

[EX Q]: Fact1: poisonous darts are used for defense by sea anemones, Fact2: Protection at the gateway is the best defense., Question: What are used as protection by sea anemones? (A) lamphreys (B) poisonous darts (C) tubular organ (D) feed on dead protists (E) coelenterates (F) islets of Langerhans (G) related organisms (H) moisturize their skin
[EX A]: B

[EX Q]: Fact1: Marine biomes are found in the salt water of the ocean., Fact2: An ocean is a large body of salt water., Question: Marine biomes are found in large bodies of what? (A) fresh water (B) the environment (C) salt water (D) liquid (E) river water (F) Absorb light (G) Sediment (H) black water
[EX A]:
C