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: extreme heat and pressure change rock into metamorphic rock, Fact2: Marble is a form of metamorphic rock., Question: What is formed from extreme heat and pressure? (A) glass (B) marble (C) crust (D) soils (E) coal (F) sugar (G) calcite (H) arteries
[EX A]: B

[EX Q]: Fact1: crossing two living things with recessive traits causes their offspring to have that recessive trait, Fact2: Attached ear lobes is a recessive trait., Question: what can the offspring of two living things have when crossed with each other? (A) attached ear lobes (B) coded genes (C) genetic material (D) colors of the spectrum (E) fur and fat (F) food and shelter (G) haploid plants (H) genetic diversity
[EX A]: A

[EX Q]: Fact1: a planet rotating causes cycles of day and night on that planet, Fact2: Of all the planets, Mars is most like Earth., Question: what rotates causing cycles of day and night? (A) bushes (B) Mars (C) wind (D) Winter (E) corn (F) Sun (G) motors (H) rings
[EX A]:
B