Scrub, rub hands for ________ seconds or sing _______________.

Scrub, rub hands for ________ seconds or sing _______________.

• A. 20 seconds, Happy Birthday
• B. 15 seconds, Happy Birthday
• C. 30 seconds, Twinkle Twinkle
• D. 10 seconds, Alphabet Song

Answer: (A)

The main idea is washing your hands for a timed period so you scrub long enough to remove germs, and using a familiar song helps you time it without a clock. The best choice is 20 seconds and singing Happy Birthday because 20 seconds is the recommended minimum for a thorough handwash, covering all the soap-covered surfaces. Singing a well-known tune provides a reliable cue that you’re washing long enough without watching a timer, and Happy Birthday is a common, easy-to-use duration guide for this task. Shorter times like 15 or 10 seconds may not clean as well, while a longer 30 seconds isn’t necessary for standard practice. The other songs can vary in tempo and duration, making them less dependable as a precise 20-second timer.

The main idea is washing your hands for a timed period so you scrub long enough to remove germs, and using a familiar song helps you time it without a clock. The best choice is 20 seconds and singing Happy Birthday because 20 seconds is the recommended minimum for a thorough handwash, covering all the soap-covered surfaces. Singing a well-known tune provides a reliable cue that you’re washing long enough without watching a timer, and Happy Birthday is a common, easy-to-use duration guide for this task. Shorter times like 15 or 10 seconds may not clean as well, while a longer 30 seconds isn’t necessary for standard practice. The other songs can vary in tempo and duration, making them less dependable as a precise 20-second timer.