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: the Earth being tilted on its rotating axis causes seasons, Fact2: Spring, summer, autumn, and winter are the seasons of the year., Question: What causes spring, summer, autumn, and winter? (A) meteor showers (B) heat production (C) the sun's energy (D) Generating heat (E) Earth tilted on rotating axis (F) Something with a head, thorax, and abdomen (G) Earth vibrating (H) lunar cycle
[EX A]: E

[EX Q]: Fact1: Birds evolved from a group of bipedal dinosaurs called theropods., Fact2: All hawks are birds., Question: What evolved from a group of bipedal dinosaurs called theropods? (A) alpacas (B) bacteria (C) hawks (D) vision (E) humans (F) animals (G) mammals (H) viruses
[EX A]: C

[EX Q]: Fact1: Macroevolution is evolution over geologic time above the level of the species., Fact2: Geologic time lines are expressed in geologic eras and periods., Question: macroevolution is evolution over what, above the level of the species? (A) plants (B) H 2 O (C) years (D) scale (E) gravity (F) eras (G) weathering (H) Joules
[EX A]:
F