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: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Water is a mechanical weathering force., Question: What weathers rocks? (A) soil (B) streams (C) a delta (D) calcite (E) erosion (F) water (G) grass (H) the sun

Output: F

Input: Consider Input: Fact1: Caffeine is a central nervous system stimulant., Fact2: Cocaine is a stimulant and increases the user's heart rate and blood pressure., Question: What does caffeine do? (A) Increase fame (B) increases a body's strength (C) Release energy (D) Increase user's heart rate (E) Transfers energy (F) decrease stamina (G) Increase intelligence (H) Increase wealth

Output: D

Input: Consider Input: Fact1: Competition may lead to aggressive behaviors or displays of aggression., Fact2: Another form of aggressive behavior is the verbal outburst., Question: what may competition lead to? (A) Plant growth is reduced (B) if humans disturb bears (C) enormous damage to homes (D) negative (E) major threat to health (F) harm them (G) verbal outbursts (H) resistance activities
Output: G