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: All life relies on a relatively narrow range of pH, or acidity., Fact2: All organisms have life cycles., Question: what relies on a relatively narrow range of acidity? (A) organisms (B) carbon (C) animals (D) hydrogen (E) density (F) trees (G) Most plants (H) barnacles
A

Fact1: insect bites cause harm to living things, Fact2: Iguanas are a lot like dogs, people and other living things., Question: What can an insect to do cause harm to people? (A) humans (B) Injury (C) Bite an iguana (D) Bite a dog (E) deadly (F) Bite (G) death (H) Bite an insect
F

Fact1: when a gas in an open container evaporates , that gas spreads out into the air, Fact2: Gas is usually oxygen., Question: What happens when oxygen in an open container evaporates? (A) ejaculate is carried (B) oxygen compresses (C) rapid changes occur (D) oxygen spreads into the air (E) around 5 to 27 degrees Celsius (F) thermal expansion (G) oxygen dissolves (H) oxygen catches fire

D