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: Protozoa can be classified on the basis of how they move., Fact2: Paramecium are protozoa, single celled animals., Question: What is a way to categorize paramecium? (A) the smell (B) coliform (C) the taste (D) canis lupus (E) how they move (F) the length (G) skin color (H) coelenterates
E

Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Like other ants, the fire ant is a social insect., Question: What may live in large colonies? (A) animals (B) tigers (C) tardigrades (D) fire ants (E) bears (F) honeybees (G) orchids (H) graptolites
D

Fact1: coal is used for generating heat by burning, Fact2: Like coal, petroleum is a fossil fuel., Question: What is used for generating heat by burning? (A) Calcium carbonate (B) carbon dioxide (C) fossil fuels (D) clouds (E) peachleaf willow (F) space (G) calcite (H) sunlight
C