A liquid, as listed on a Material Safety Data Sheet (MSDS), having a flash point below 100°F (37.78°C) is called a/an __________.

Correct Answer: Option D — flammable liquid

NFPA and OSHA standards define flammable liquids as those having a flash point below 100°F (37.78°C). Combustible liquids are defined as having a flash point at or above 100°F. This distinction is critical for determining storage requirements, fire suppression systems, and electrical equipment classification in hazardous areas.