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").

Input: Consider 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

Output: F


Input: Consider Input: Fact1: Ancestors of hagfish are thought to have been the earliest vertebrates., Fact2: Property of ancestors and forefathers can only be legally inherited by sons., Question: Forefathers of what kind of fish are thought to be the earliest vertebrates? (A) hagfish (B) Pelycosaur (C) fish (D) angiosperm (E) adult (F) Therapsids (G) marine (H) aquatic

Output: A


Input: Consider Input: Fact1: Blood pH may become unbalanced if the rate of breathing is too fast or too slow., Fact2: Alkalosis is a blood pH above 7.45., Question: What can lead to alkalosis? (A) metabolic reaction (B) Breathing too fast or too slow (C) Drinking too much water. (D) Something that causes allergies (E) Sleeping too much. (F) direct damage to the lungs (G) Warm air moving into cold air (H) Eating too much.


Output: B