Which of the following is classified as a grade "E" combustible liquid?

Correct Answer: Option A — Bunker "C"

Bunker C is a heavy fuel oil with a high flash point, typically exceeding 150°F. Per 46 CFR Subchapter D, this classifies it as a Grade E combustible liquid. Unlike naphtha or gasoline, which are highly volatile and flammable, Bunker C requires heating to be effectively pumped and atomized.