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: Sperm are deposited in the vagina during sexual intercourse., Fact2: Male gametes are sperm., Question: What are deposited in the vagina during sexual intercourse? (A) several genes (B) prokaryotic cells (C) cilia (D) female gametes (E) testicles (F) male gametes (G) irritants (H) Vibrissae
[EX A]: F

[EX Q]: Fact1: Streams may start with runoff or water seeping out of a spring., Fact2: Streams A stream is a sequence of characters., Question: a sequence of characters may start with runoff or what seeping out of a spring? (A) sodium (B) Joules (C) liquid (D) rivers (E) solutes (F) water (G) rain (H) SO2
[EX A]: F

[EX Q]: Fact1: most canyons are formed by flowing rivers through erosion over long periods of time, Fact2: Rivers and glaciers are made of water., Question: Flowing water forms most canyons through erosion over what? (A) movement of tectonic plates (B) dry streambeds (C) long periods of time (D) Physical weathering (E) Time and energy (F) short periods of time (G) massive damage (H) calving glaciers
[EX A]:
C