Fire hose stations shall be marked in red letters and figures such as Fire Station No. "1", "2", "3", etc. The height of the letters and figures must be at least __________.

Correct Answer: Option D — 2 inches

Title 46 CFR firefighting equipment standards require fire hose stations to be conspicuously marked with red letters and figures at least 2 inches in height to ensure rapid identification during emergency response operations.