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").

Fact1: All animals are heterotrophs., Fact2: Heterotrophic bacteria derive energy from the breakdown of organic molecules., Question: What derive energy from the breakdown of organic molecules? (A) Most plants (B) hydrocarbons (C) potatoes (D) all stones (E) all water sources (F) all mountains (G) all animals (H) Generating heat
G

Fact1: having food has a positive impact on an organism 's health, Fact2: Birds and animals eat such food ., Question: What generally has a positive impact on an organism's health? (A) stay warm (B) sex with multiple partners (C) smoking (D) exercise (E) nutrients (F) eating (G) Cooking (H) fasting
F

Fact1: Some parasites kill their host, but most do not., Fact2: Everyone who died in the war was killed by the Americans., Question: Some parasites, though rarely, make what die? (A) animals (B) insects (C) viruses (D) bacteria (E) other parasites (F) honeybees (G) chickens (H) their hosts
H