题目内容：
根据以下资料，回答题。
Accordingtothetext,incompletecombustionismorelikelytooccurwithgasolinethanwithanalternativefuelbecause____. A．thecombustionofgasolinereleasesphotochemicallyactivehydrocarbons
B．thecombustionofgasolineinvolvesanintricateseriesofreactions
C．gasolinemoleculeshaveasimplemolecularstructure
D．gasolineiscomposedofsmallmolecules
参考答案：
答案解析：