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: Protozoa can be classified on the basis of how they move., Fact2: Paramecium are protozoa, single celled animals., Question: What can be classified on the basis of how they move? (A) each species (B) aquatic organisms (C) reptiles ancestral to mammals (D) single celled organisms (E) microbes and mussels (F) trailers and boats (G) How fast a vehicle is going (H) melanin content
[EX A]: D

[EX Q]: Fact1: Consumers take in food by eating producers or other living things., Fact2: Animals are consumers , they feed on the primary producers or on other consumers., Question: What takes in food by eating producers or other living things? (A) humans (B) fur seals (C) trees (D) fungi (E) algae (F) animals (G) people (H) plants
[EX A]: F

[EX Q]: Fact1: measuring the hardness of minerals requires scratching those materials, Fact2: Minerals are classified by their hardness., Question: What must be done to classify minerals? (A) wash them (B) Phylogeny (C) bury them (D) scratch them (E) treatment (F) Cladistics (G) periodic table (H) throw them
[EX A]:
D