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: Tunicates reproduce sexually., Fact2: Sea squirts are the best known tunicates., Question: what reproduces sexually? (A) orchids (B) mountains (C) viruses (D) humans (E) sea squirts (F) Most plants (G) h2o (H) insects
E

Fact1: Organs of excretion make up the excretory system., Fact2: Digestive system Excretory system removes waste and toxic substances from blood., Question: What removes waste and toxic substances from the blood? (A) Special disposal (B) Something coming from a gland (C) aqueous solution (D) Veins and arteries. (E) digestive system organs (F) that material's properties (G) Something that causes allergies (H) microorganisms
E

Fact1: using a gasoline engine requires burning gasoline, Fact2: Gasoline ignites easily and burns vigorously., Question: what ignites easily? (A) rockets (B) fuel (C) air (D) cigars (E) Fuel cells (F) heat energy (G) oil (H) gasoline
H