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").

Ex Input:
Fact1: pathogens can cause disease, Fact2: Fungi are significant pathogens., Question: What can fungi do? (A) protect them (B) survive (C) Spread disease (D) migrate (E) hydrate their cells (F) decrease stamina (G) reproduce (H) aerobic capacity

Ex Output:
C

Ex Input:
Fact1: Biodiversity increases the productivity and stability of ecosystems., Fact2: Ecotourism, on the other hand, can help to conserve biodiversity., Question: What increases the stability of ecosystems? (A) overpopulation (B) water consumption (C) loose soil (D) Quality of life (E) agriculture (F) deforestation (G) ecotourism (H) trees

Ex Output:
G

Ex Input:
Fact1: medicine is used for curing people when they are sick, Fact2: Herbs are medicines and aids., Question: what are used for curing people when they are sick? (A) cells (B) herbs (C) poison (D) pushups (E) sponges (F) bacteria (G) calcium (H) apples

Ex Output:
B