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: Reproduction is the process by which organisms give rise to offspring., Fact2: Then, the lowest energy offspring are used as parents for the next generation., Question: The next generation of an organism rises via: (A) Plants growth (B) spontaneous generation (C) reproduction (D) The Sun (E) revolution (F) sun's heat (G) heat energy (H) unions

Output: C

Input: Consider Input: Fact1: a delta is formed by deposition of sediment at the mouth of a river by water fanning out, Fact2: Rivers provide a water supply., Question: What is formed by deposition of sediment at the mouth of a water supply fanning out? (A) a hurricane (B) soils (C) a delta (D) an ocean (E) soft soil (F) an island (G) detritus (H) spring

Output: C

Input: Consider Input: Fact1: Light enters the eye through an opening called the pupil., Fact2: Light enters the eye through the pupil, and the pupil is made larger or smaller by the iris., Question: What makes the pupil change sizes? (A) electrically (B) sun's heat (C) sweating (D) It expands (E) The iris (F) nerves (G) environment (H) heat
Output: E