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: satellites are used to take images from space, Fact2: Satellite images are digital photographs., Question: Satellites are used to take what from space? (A) rapid changes occur (B) snow, ice, and rock (C) trees and flowers (D) painters (E) occurs over a wide range (F) digital photographs (G) digital files (H) photographers
[EX A]: F

[EX Q]: Fact1: an animal usually requires a warm body temperature for survival, Fact2: Squirrels hide and sleep in a secret warm place all winter., Question: What requires hiding and sleeping for survival? (A) bacteria (B) rice (C) amphibians (D) organisms (E) Frogs (F) trees (G) humans (H) animals
[EX A]: H

[EX Q]: Fact1: Negative feedback controls insulin secretion by the pancreas., Fact2: Feedback inhibition is an example of common biological control mechanism called negative feedback., Question: Feedback inhibition controls insulin secretion by what? (A) prokaryotic cells (B) melanin amount (C) hypoglycemia (D) medication (E) humans (F) Pasteurization (G) pancreatic cancer (H) the pancreas
[EX A]:
H