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: plasma is formed by electrons separating from atoms in stars, Fact2: Plasma exists inside stars and in interstellar gases., Question: What is formed by electrons separating from interstellar gases? (A) an object (B) Energy. (C) proteins (D) led lights (E) air (F) light (G) plasma (H) dust
[A]: G


[Q]: Fact1: nuclear reactions in stars causes stars to produce light, Fact2: And, of course, the Sun is a star., Question: What in the sun causes the sun to produce light? (A) energy of moving objects (B) hydrogen and oxygen (C) heat energy (D) water (E) solar rays (F) rotation (G) nuclear reactions (H) kinetic energy
[A]: G


[Q]: Fact1: sinkholes are formed by precipitation, Fact2: Rain is also known as precipitation., Question: What can cause sinkholes? (A) Solid bedrock (B) rivers (C) mines (D) Drought (E) Rain (F) Evaporation (G) coal (H) storms
[A]:
E