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").

Example Input: Fact1: Most salamanders use their sense of smell to find a mate., Fact2: Like frogs, salamanders are amphibians., Question: What uses its sense of smell to find a mate? (A) the Sun (B) peachleaf willow (C) rocks (D) fur seals (E) warm-blooded (F) trees (G) passenger pigeons (H) some amphibians
Example Output: H

Example 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
Example Output: H

Example Input: Fact1: melting is when solids are heated above their melting point, Fact2: When melted or dissolved in water, the crystal lattice is destroyed and the ions move freely., Question: What is when solids are heated and ions move freely? (A) dissolving (B) refreshing (C) kinetic energy (D) removing (E) boiling (F) barrel-shaped (G) renewing (H) unidirectional
Example Output:
A