Final answer:
The reaction C₄H₈ (aq) + O₂ (aq) → 4CO₂ (aq) + 4H₂O (l) is an example of a combustion reaction.
Step-by-step explanation:
The reaction given in the options, C₄H₈ (aq) + O₂ (aq) → 4CO₂ (aq) + 4H₂O (l), is an example of a combustion reaction. In combustion reactions, a substance reacts with oxygen to produce carbon dioxide and water. The reactant C₄H₈ represents a hydrocarbon compound, and when it reacts with oxygen, it undergoes combustion to form carbon dioxide and water.