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: an incandescent light bulb converts electricity into light by sending electricity through a filament, Fact2: Electrical energy is also energy., Question: What part of a light bulb has energy run through it, converting energy into light? (A) adding heat (B) sun's heat (C) cotton (D) heat energy (E) glass (F) light (G) filaments (H) broken light bulbs
Example Output: G

Example Input: Fact1: Biomass is the total mass of organisms at a trophic level., Fact2: Each stage is a trophic level., Question: The total mass of organisms in an environmental stage is called what? (A) food pyramid (B) extinction (C) ecological pyramid (D) food chain (E) vegetation (F) food (G) ligt (H) biomass
Example Output: H

Example Input: Fact1: Cells are the basic units of the structure and function of living things., Fact2: Physiology is the study of the function of living things., Question: Which of the following sciences studies cells? (A) sensory neurons (B) Astronomy (C) epidermal (D) it needs them (E) Physiology (F) retina (G) Anatomy (H) Astrology
Example Output:
E