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").

Example Input: Fact1: Annelids are worms such as the familiar earthworm., Fact2: An earthworm has five hearts., Question: One example of an annelid has how many hearts? (A) three (B) Five (C) white (D) warm (E) four (F) strong (G) long (H) small
Example Output: B

Example 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
Example Output: B

Example Input: Fact1: a light bulb converts electrical energy into light energy when it is turned on, Fact2: Most of the energy a light bulb uses turns into heat., Question: What is converted to heat in a light bulb? (A) Firecrackers (B) electricity (C) peachleaf willow (D) an object (E) layers of fat (F) an electron lens (G) sunlight (H) our nearest star
Example Output:
B