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: Veins generally carry deoxygenated blood., Fact2: Arteries and veins are blood vessels., Question: Arteries in the body are able to carry what? (A) saliva (B) breathe (C) water (D) Air (E) oxygen (F) blood (G) veins (H) liquid
[A]: F

[Q]: Fact1: smoking tobacco decreases stamina, Fact2: Manual dexterity and physical stamina are vital., Question: What decreases manual dexterity? (A) Dehydration (B) lifting weights (C) hypothyroidism (D) prolonged thirst (E) working out (F) eating healthy (G) smoking tobacco (H) Abnormal cell growth
[A]: G

[Q]: Fact1: cutting down trees has a negative impact on an ecosystem, Fact2: Oak trees are so strong., Question: What has a negative impact on an ecosystem? (A) massive damage (B) Pesticides (C) good weather (D) Destroy bridges (E) planting trees (F) normal water levels (G) deforestation (H) cutting down oaks
[A]:
H