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: Plants that shed their leaves seasonally each year are called deciduous plants., Fact2: Shade trees can be deciduous., Question: What can shed their leaves? (A) rabbit (B) Power plants (C) insects (D) swamp vegetation (E) mammals (F) Shade trees (G) animals (H) Most plants
Example Output: F

Example Input: Fact1: condensing means changing from a gas into a liquid by reducing heat energy, Fact2: Heat energy is measured in calories., Question: Calories measure the energy that leaves a gas to form what? (A) nutrients (B) burning (C) warmth (D) H20 (E) ligt (F) liquid (G) store (H) movement
Example Output: F

Example Input: Fact1: Most carcinogens cause cancer by producing mutations in DNA., Fact2: Smoke is full of carcinogens., Question: What can cause cancer by producing mutations in DNA? (A) maples (B) PDAs (C) A drug. (D) copper (E) coal (F) CO 2 (G) smoke (H) sponges
Example Output:
G