You are on a multiple-product chemical tanker and will carry cargoes of allyl alcohol, benzene, and propanolamine. Which of the following is true?

Correct Answer: Option A — Allyl alcohol is incompatible with propanolamine but both are compatible with benzene.

Allyl alcohol and propanolamine fall into reactive groups that are mutually incompatible under 46 CFR Part 153, whereas benzene acts as a relatively inert hydrocarbon compatible with both.