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: 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
[EX A]: D

[EX Q]: Fact1: Freshwater biomes have water that contains little or no salt., Fact2: Biomes are global ecosystems., Question: what is freshwater habitats that contain little or no salt? (A) Animal survival (B) allow growth (C) weathering (D) atmosphere (E) loose soil (F) ecosystems (G) salt and water. (H) oceans
[EX A]: F

[EX Q]: Fact1: skin is used for protecting the body from harmful substances, Fact2: Skin is a protective organ., Question: A protective what protects the body from harmful substances? (A) hair (B) molecule (C) keratin (D) style (E) beacon (F) organ (G) fur (H) tissue
[EX A]:
F