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: All chemical reactions require activation energy to get started., Fact2: Fire is a chemical reaction., Question: What does fire require to get started? (A) an engine (B) activation energy (C) water (D) energy usage (E) direct energy (F) dogs (G) activated almonds (H) adding heat

Output: B


Input: Consider Input: Fact1: soil is formed by weathering, Fact2: Over time, the slow processes of weathering and erosion can turn large rocks into sand., Question: What is formed by erosion processing large rocks? (A) cracks (B) crust (C) Newton (D) roots (E) pan (F) soil (G) potash (H) biome

Output: F


Input: Consider Input: Fact1: Producers use energy and inorganic molecules to make food., Fact2: Green plants are known as producers ., Question: what uses energy and inorganic molecules to make food? (A) peachleaf willow (B) By wind and rain (C) humans (D) insects (E) green plants (F) h2o (G) animals (H) agriculture


Output: E