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: a seismograph is used for measuring the size of an earthquake, Fact2: Magnitude a measure of earthquake size., Question: Seismographs measure what aspect of earthquakes? (A) Major effects (B) magnitude (C) Otoacoustic (D) power (E) classified (F) specialized (G) lifespan (H) their speed

Ex Output:
B


Ex Input:
Fact1: Phylogeny is the evolutionary history of a group of related organisms., Fact2: Much of evolutionary biology involves the history of organic diversity., Question: Phylogeny is the history and organic diversity of what? (A) unicellular organisms (B) unrelated organisms (C) evolved areas (D) unrelated events (E) one-celled animals (F) trees and flowers (G) related organisms (H) ecosystems

Ex Output:
G


Ex Input:
Fact1: Earth orbiting the Sun causes seasons to change, Fact2: Seasons on the earth are due to the tilt of the earth's axis., Question: What causes seasons to change? (A) Time and energy (B) gravity (C) orbital tilt (D) clouds (E) global warming (F) weather (G) climate (H) an object

Ex Output:

C