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: Some parasites live on the surface of their host., Fact2: Leeches are external parasites., Question: What unwanted creature would be found on the surface of a human body using it as a host? (A) Tapeworm. (B) Leeches. (C) Pesticides (D) animals (E) insects (F) Hookworm (G) bacteria (H) Bracelet.
[A]: B

[Q]: Fact1: habitat destruction causes animals to move to find shelter in another habitat, Fact2: Habitat destruction from logging is also a major concern., Question: What does logging cause animals to do? (A) use oxygen, release carbon (B) Plant growth is reduced (C) hide (D) eat (E) erode (F) move to find shelter. (G) Destroy crops (H) Converting waste.
[A]: F

[Q]: Fact1: moss causes chemical weathering, Fact2: Mosses Mosses are flowerless plants that grow in clumps., Question: What can cause chemical weathering? (A) Calcium carbonate (B) our nearest star (C) global warming (D) sea squirts (E) swamp vegetation (F) single-celled organisms (G) flowerless plants (H) Earthworms
[A]:
G