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 Q]: 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 A]: B

[EX Q]: Fact1: an earthquake causes the ground to shake, Fact2: Seismic waves are produced by earthquakes., Question: Seismic waves cause what to shake? (A) earth (B) body water (C) wind (D) tremors (E) sunlight (F) the ground (G) Sediment (H) rocks
[EX A]: F

[EX Q]: Fact1: plant reproduction often requires pollen, Fact2: Ferns are vascular plants., Question: what often requires pollen to reproduce? (A) burrs (B) humans (C) trees (D) RNA (E) hummingbirds (F) ferns (G) bees (H) seeds
[EX A]:
F