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: a glacier causes mechanical weathering, Fact2: Largest of the glacier-formed lakes is Karakul., Question: What can be formed by mechanical weathering? (A) NaCl (B) white (C) rock (D) tube (E) soils (F) Roads (G) Lakes (H) sand
[EX A]: G

[EX Q]: Fact1: friction causes an object to lose energy, Fact2: Friction causes the decline of speed., Question: The decline of speed is associated with what? (A) an object gaining energy (B) a lot of human deaths (C) decrease stamina (D) hyperthyroidism (E) an object losing energy (F) an object gaining momentum (G) body temperature reduces (H) an object going faster
[EX A]:
E