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: gases released during the use of fossil fuels causes global warming, Fact2: Oil is a fossil fuel., Question: Gases released during the use of oil causes what? (A) global warming (B) better weather on the earth (C) colder weather (D) less oily air (E) The atmosphere (F) flooding (G) Temperature (H) cleaner air to breathe
[A]: A


[Q]: Fact1: Mutations are essential for evolution to occur., Fact2: Mutations are changes in the DNA sequence., Question: What is essential for evolution to occur? (A) Changes in DNA sequences (B) Plant reproduction (C) Natural disasters (D) Gamma radiation (E) biological diversity (F) DNA sequences staying the same (G) the environment (H) that material's properties
[A]: A


[Q]: Fact1: Cells cannot survive without oxygen., Fact2: Cells are the basic building blocks of life., Question: what cannot surive without oxygen (A) basic building blocks of life (B) Microscopic organisms (C) an area swollen with pus (D) incapable of regurgitation (E) hydrogen (F) vacuum (G) outer space (H) the respiratory system
[A]:
A