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").

Fact1: Insulin helps cells take up glucose from the blood., Fact2: Insulin produced by the pancreas is endogenous insulin., Question: What does the pancreas help cells take up from the blood? (A) bacteria (B) store (C) Energy. (D) food (E) Energy (F) glucose (G) cells (H) blood
F

Fact1: Bivalves feed on plankton and nonliving organic matter., Fact2: Mussels are bivalve mollusks., Question: What feeds on plankton and nonliving organic matter? (A) barnacles (B) mollusks (C) animals (D) the Sun (E) sharks (F) graptolites (G) bacteria (H) dogs
B

Fact1: preventing the transfer of heat from an organims 's body causes that organism to keep warm, Fact2: Animals are organisms that have ingestive metabolism., Question: Preventing the transfer of heat from an animal 's body causes that animal to keep what? (A) fur (B) energy (C) cold (D) chilled (E) warmth (F) warm (G) fats (H) frozen

F