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 earthquake causes the ground to shake, Fact2: Seismic waves are produced by earthquakes., Question: Seismic waves cause what to shake? (A) earth (B) body water (C) wind (D) tremors (E) sunlight (F) the ground (G) Sediment (H) rocks
Example Output: F

Example Input: Fact1: Soil can be depleted of nutrients., Fact2: Dirt is really misplaced soil., Question: When gardening what can be depleted of nutrients? (A) fertilizer (B) bacteria (C) the plant (D) coal (E) pine (F) the dirt (G) Acids (H) water
Example Output: F

Example Input: Fact1: riding a bike does not cause pollution, Fact2: Scientific consensus is that pollution causes global warming., Question: Which of the following does not contribute to global warming? (A) nucleus of a cell (B) Flying in a plane (C) Leaving the lights on (D) haploid plants (E) a hydraulic system (F) Driving a car (G) Riding a bike (H) power stations
Example Output:
G