instruction:
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").
question:
Fact1: Evolution occurs in response to a change in the environment., Fact2: Extinction is a natural part or the process of evolution., Question: What happens to an environment to cause extinction?  (A) relocation (B) changes (C) rain (D) exposure (E) forces (F) wind (G) Pollution (H) discovery
answer:
B


question:
Fact1: a delta is formed by deposition of sediment at the mouth of a river by water fanning out, Fact2: Rivers provide a water supply., Question: What is formed by deposition of sediment at the mouth of a water supply fanning out? (A) a hurricane (B) soils (C) a delta (D) an ocean (E) soft soil (F) an island (G) detritus (H) spring
answer:
C


question:
Fact1: Meiosis is the type of cell division that produces gametes., Fact2: Meiosis Prior to meiosis as in mitosis, chromosome duplication occurs., Question: chromosome duplication occurs when cell division does what? (A) produces sound (B) produces gametes (C) rapid expansion (D) makes proteins (E) permineralization (F) checks dna (G) Plant reproduction (H) it can be seen
answer:

B