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: Sponges have specialized cells called collar cells., Fact2: Flagellum of collar cell cause current to pass over collar and food is collected., Question: Which aspect of a sponge's cells allow it to collect food? (A) the cervix (B) teeth (C) flagellum (D) cartilage (E) plasma (F) osculum (G) tissue (H) potassium
Example Output: C

Example Input: Fact1: Most plants grow roots down into the soil to absorb water and minerals., Fact2: If the plant is green, it is a producer., Question: What can a producer grow down into the soil in order to absorb minerals and water? (A) Trees (B) stems (C) roots (D) Oak (E) seeds (F) burrs (G) grass (H) water absorbing petals
Example Output: C

Example Input: Fact1: the gravitational pull of the Moon on Earth 's oceans causes the tides, Fact2: Rivers drain into the Pacific Ocean., Question: What does the gravitational pull of the moon cause? (A) earth's rotation (B) energy of moving objects (C) tides in the Pacific (D) to move people (E) river beds (F) the Great Barrier Reef (G) Plant growth is reduced (H) gravitational pull of earth
Example Output:
C