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: tidal energy can be used to produce electricity, Fact2: Tidal caves are formed by the energy of the rising and falling tides., Question: what can produce electricity? (A) rivers (B) animal transport (C) tidal caves (D) Nematoda (E) rays or beams (F) animals (G) cactuses (H) photons
[A]: C


[Q]: Fact1: a battery converts chemical energy into electrical energy, Fact2: Electricity is a form of energy and is sometimes called electrical energy., Question: How does a battery work? (A) dormant state (B) hydrogen and oxygen (C) Throwing it away (D) Charging it (E) It converts power (F) Plugging it in (G) It remains dormant (H) to move people
[A]: E


[Q]: Fact1: Amphibians have permeable skin that easily absorbs substances from the environment., Fact2: Natural Toxins Toxins are poisonous substances from bacterias, plants or animals., Question: Why can amphibians easily absorb toxins? (A) salamanders (B) permeable skin (C) hydrate their cells (D) it needs them (E) poisonous frogs (F) Pesticides (G) cold blooded (H) bending light rays
[A]:
B