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: Hydrogen bonds cause water to expand when it freezes., Fact2: Deuterium, or heavy hydrogen, is an isotope of hydrogen, or a hydrogen atom with a neutron added., Question: The bonds of that which when heavy is Deuterium cause what to expand when it freezes? (A) matter (B) rings (C) CO 2 (D) liquids (E) gas (F) solutes (G) cations (H) water
[A]: H


[Q]: Fact1: vein deposits of gold and silver are formed by igneous intrusion, Fact2: Intrusive igneous rocks account for sections of higher elevation., Question: vein deposits of gold and silver are formed where? (A) loose soil (B) aqueous solution (C) graptolites (D) tectonic plates coliding (E) higher elevations (F) mountain sources (G) flow of electrons (H) In sediment
[A]: E


[Q]: Fact1: Cells are the basic units of the structure and function of living things., Fact2: Respiration is a function of life, which means it is carried on by all living things., Question: Cells are the basic units allowing what in all living things (A) movement (B) motion (C) produce light (D) all matter (E) rapid expansion (F) respiration (G) to stay warm (H) Animal survival
[A]:
F