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").

Q: Fact1: most canyons are formed by flowing rivers through erosion over long periods of time, Fact2: Canyon formed as a consequence of river erosion., Question: what does erosion form? (A) valleys (B) Sediment (C) mountains (D) canyons (E) soils (F) hills (G) soft soil (H) loose soil

A: D
****
Q: Fact1: Cells are the basic units of the structure and function of living things., Fact2: All cells use glucose for energy., Question: What do all living things use for energy? (A) fish (B) kids (C) energy (D) glucose (E) The Sun (F) procreation (G) sunlight (H) food

A: D
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Q: Fact1: Secondary meristem is located within and around the vascular tissues., Fact2: Secondary meristems develop after primary meristems., Question: that which develops after primary meristems is located where in relation to vascular tissues? (A) shrub beds (B) allow growth (C) within and around (D) epidermal (E) epidermis and dermis (F) more abundant (G) Veins and arteries. (H) Most plants

A:
C
****