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: Ants communicate with chemicals called pheromones., Fact2: Ants communicate with the colony in the form of what is called pheremon trails., Question: Ants communicate with the colony using what? (A) Electrical energy (B) Chemical energy (C) visible energy (D) Decibels (E) pheremon traits (F) heat energy (G) refraction of light (H) mechanical waves
Example Output: E

Example Input: Fact1: unequal heating of Earth 's surface by the Sun causes global wind patterns, Fact2: Wind belts in the Atlantic Ocean include the trade winds and the prevailing westerlies ., Question: What causes the westerlies? (A) flow of electrons (B) Ocean currents (C) Precipitation (D) to move people (E) Drought (F) scattered light (G) Uneven heating by the sun (H) exposure to cold
Example Output: G

Example Input: Fact1: Lymphocytes are the key cells involved in the immune response., Fact2: Antibodies are synthesised by lymphocytes., Question: What response are antibodies involved in? (A) resistance activities (B) the pituitary response (C) major threat to health (D) antigens summoning them (E) Leptospirosis (F) being taken as a supplement (G) resistance (H) the immune response
Example Output:
H