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 C — flammable liquid

Under OSHA and USCG safety standards, liquids with a flash point below 100°F (37.78°C) are classified as flammable liquids. These substances pose a significant fire risk because they can readily form ignitable mixtures with air at ambient temperatures, requiring strict adherence to ignition source controls and specialized storage protocols.