I'll give you a question, please answer with step-by-step reasoning process.
What does fire require to get started?\nOptions:\n- (A) an engine\n- (B) activation energy\n- (C) water\n- (D) energy usage\n- (E) direct energy\n- (F) dogs\n- (G) activated almonds\n- (H) adding heat

(B)
All chemical reactions require activation energy to get started.

Fire is a chemical reaction.

Fire requires activation energy to get started.

.

The answer: (B)