What is physical fitness?

• A. The ability to perform in any environment.
• B. Having sound health, strength, and endurance.
• C. The ability to run a mile in under four minutes.
• D. The capacity to maintain calm in emergencies.

Answer: (B)

Physical fitness is the body's ability to perform work and activities with health, strength, and endurance. Sound health means the body's systems function well enough to sustain activity without undue illness or fatigue. Strength is the muscular force needed for tasks like lifting and carrying, while endurance covers the stamina to sustain activity over time, including cardiovascular and muscular components. Together these elements describe overall fitness, which is why the option mentioning sound health, strength, and endurance is the best choice. Other descriptions are narrower or focus on a single measure—performing in any environment is too broad, a sub-four-minute mile is an extreme benchmark not representative of general fitness, and staying calm in emergencies centers on mental resilience rather than physical capacity.