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: Genes that are located on the same chromosome are called linked genes., Fact2: Linked genes are inherited together., Question: Genes are inherited together if they are located on the same what? (A) the eyes (B) chromosome (C) cell (D) gene (E) pollen (F) sensory neurons (G) DNA (H) Most plants
[A]: B


[Q]: Fact1: pollutants have a negative impact on the environment, Fact2: Environment and Health Environment and Health All living things depend on their environment., Question: pollutants have a negative impact on all what (A) tractors (B) circulatory systems (C) near the shoreline (D) living things (E) Electrical energy (F) pavement (G) potholes (H) important habitats
[A]: D


[Q]: Fact1: most canyons are formed by flowing rivers through erosion over long periods of time, Fact2: Rivers, rainwater, well water and most lakes contain fresh water., Question: What are canyons formed by? (A) clouds (B) stars (C) erosion (D) loose soil (E) wind (F) ice wedging (G) rainwater (H) calcite
[A]:
G