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: erosion of soil has a negative impact on the environment, Fact2: Much of the landscape is scarred by severe soil erosion., Question: What is scarred by a negative impact on the environment? (A) mines (B) deforestation (C) skin (D) bushes (E) water (F) landscape (G) coastlines (H) clouds
Example Output: F

Example Input: Fact1: Balance is the ability to sense and maintain body position., Fact2: People fall when they lose their sense of balance., Question: the ability to sense and maintain body position prevents people what (A) falling (B) death (C) illness (D) starving (E) blindness (F) disease (G) depression (H) sweating
Example Output: A

Example Input: Fact1: bacteria in soil convert atmospheric nitrogen into a form usable by plants, Fact2: Bamboos are among the most useful of all plants., Question: Bacteria in soil convert atmospheric nitrogen into a form usable by what? (A) Conifers (B) food (C) rocks (D) humans (E) ice (F) bacteria (G) sharks (H) bamboo
Example Output:
H