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: hydropower requires damming a river, Fact2: Another source of energy is hydropower., Question: What is a source of energy? (A) fossil fuels (B) cooking (C) damming a river (D) sleeping (E) napping (F) Electrical energy (G) our nearest star (H) sunlight
[A]: C


[Q]: Fact1: friction causes an object to lose energy, Fact2: Objects An object can be one of several things., Question: What does friction cause things to lose? (A) heat (B) moisture (C) toughness (D) Energy. (E) traits (F) light (G) energy (H) cartilage
[A]: G


[Q]: Fact1: Minerals are chemical elements that are essential for body processes., Fact2: Minerals are inorganic substances., Question: What are essential for body processes? (A) light energy (B) food and shelter (C) jealousy (D) Inorganic substances (E) Organic compounds (F) fear (G) heat energy (H) dust
[A]:
D