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").
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Question: Fact1: Mollusks live in most terrestrial, freshwater, and marine habitats., Fact2: Interestingly, a squid is also a mollusk., Question: What can live in marine habitats? (A) lizards (B) horses (C) elephants (D) fur seals (E) a fish (F) squids (G) barnacles (H) animals

Answer: F

Question: Fact1: erosion of soil has a negative impact on the environment, Fact2: Much of the landscape is scarred by severe soil erosion., Question: What is scarred by a negative impact on the environment? (A) mines (B) deforestation (C) skin (D) bushes (E) water (F) landscape (G) coastlines (H) clouds

Answer: F

Question: Fact1: Some parasites live on the surface of their host., Fact2: Leeches are external parasites., Question: Where do leeches live in relation to their hosts? (A) In their beds (B) body water (C) competing for resources (D) In their shoes (E) loose soil (F) In their intestines (G) important habitats (H) On their surface

Answer:
H