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: when an electrical circuit is working properly , electrical current runs through that circuit, Fact2: An electric current is then used to burn the tumor away., Question: When the electrical circuit is working properly, what can happen? (A) dogs can run (B) heat production (C) enormous damage to homes (D) a tumor can be burned away (E) massive damage (F) sperm and egg fuse (G) baskets can be hand-woven (H) bacteria can thrive
[A]: D

[Q]: Fact1: water causes refraction of light, Fact2: Halos are produced by the refraction of light., Question: What causes halos? (A) germs (B) Pacific (C) solutes (D) water (E) storms (F) glass (G) algae (H) the sun
[A]: D

[Q]: Fact1: fossils are formed when layers of sediment cover the remains of organisms over time, Fact2: Fish Fish are the ultimate aquatic organism., Question: What can be formed when layers of sediment cover the remains of fish? (A) oysters (B) detritus (C) bones (D) deposits (E) fossils (F) metamorphic rocks (G) volcanic rock (H) shells
[A]:
E