Combustible liquid is defined as any liquid having a flash point above __________.

Correct Answer: Option B — 80°F (27°C)

Under 46 CFR 30.10-15, a combustible liquid is legally defined as any liquid having a flashpoint above 80°F (26.7°C). Liquids with flashpoints at or below this temperature are classified as flammable, requiring more stringent vapor control and ignition prevention measures.