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: Biomass is the total mass of organisms at a trophic level., Fact2: Producers make up the first trophic level, primary consumers the second, and so on., Question: What is the total mass of primary consumers (A) Plants (B) animals (C) food (D) Mountains (E) Biomass (F) decreases (G) all matter (H) Weight

Ex Output:
E


Ex Input:
Fact1: mountains are formed by earthquakes, Fact2: For mountains one goes to the Alps., Question: What was formed by earthquakes? (A) deposits (B) coarse grit (C) backbones (D) road bends (E) The Alps (F) pitches (G) waves (H) Otoacoustic

Ex Output:
E


Ex Input:
Fact1: satellite technology is used for predicting the weather, Fact2: Meteorologists try to predict the weather., Question: What do meteorologists use? (A) higher ultraviolet  radiation (B) x-rays (C) A backbone (D) the stock market (E) occurs over a wide range (F) satellite technology (G) tractors (H) nutritious fluid

Ex Output:

F