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: Flowing water can slowly dissolve carbon in sedimentary rock., Fact2: Rivers and streams are bodies of fresh, flowing water., Question: What can slowly dissolve carbon in sedimentary rock? (A) hydrocarbons (B) acetic acid (C) precipitation (D) evaporation (E) rivers and streams (F) puddles (G) ponds (H) nitrogen

Output: E


Input: Consider Input: Fact1: the Earth being tilted on its rotating axis causes seasons, Fact2: Spring, summer, autumn, and winter are the seasons of the year., Question: What causes spring, summer, autumn, and winter? (A) meteor showers (B) heat production (C) the sun's energy (D) Generating heat (E) Earth tilted on rotating axis (F) Something with a head, thorax, and abdomen (G) Earth vibrating (H) lunar cycle

Output: E


Input: Consider Input: Fact1: loud noises can cause animals to startle, Fact2: All animals are startled by an unannounced approach, a sudden movement, or a loud noise., Question: what can animals be startled by? (A) murmur (B) reflexes (C) vehicles (D) movement (E) rain (F) photons (G) waves (H) an object


Output: D