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: 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: extreme heat and pressure change rock into metamorphic rock, Fact2: Marble is a form of metamorphic rock., Question: What is formed from extreme heat and pressure? (A) glass (B) marble (C) crust (D) soils (E) coal (F) sugar (G) calcite (H) arteries

Ex Output:
B


Ex Input:
Fact1: Caffeine is a central nervous system stimulant., Fact2: Cocaine is a stimulant and increases the user's heart rate and blood pressure., Question: What does caffeine do? (A) Increase fame (B) increases a body's strength (C) Release energy (D) Increase user's heart rate (E) Transfers energy (F) decrease stamina (G) Increase intelligence (H) Increase wealth

Ex Output:

D