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").

Input: Consider Input: Fact1: Some viruses can cause cancer., Fact2: Cancer is an example of a mutation in cells., Question: What can mutate cells? (A) Allergies (B) water (C) fruits (D) flow of electrons (E) vegetables (F) harmful substances (G) rays or beams (H) some viruses

Output: H

Input: Consider Input: Fact1: oil is formed by layers of sediment pushing down on decomposing algae, Fact2: When the algae dies it is decomposed by bacteria., Question: Oil is formed by layers of sediment pushing down on what? (A) bacteria (B) nutrients (C) amoebae (D) tunicates (E) oysters (F) coral reefs (G) mussels (H) Bodily water

Output: A

Input: Consider Input: Fact1: if an object in a fluid is more dense than that fluid then that object will sink in that fluid because of gravity, Fact2: For most purposes, Newton's law of gravity is extremely accurate., Question: if an object in a fluid is more dense then it will sink due to whose law? (A) Newton (B) density (C) forces (D) heat (E) similar (F) salinity (G) friction (H) power
Output: A