An individual's system of maintaining cleanliness and health is known as:

• A. Nutrition
• B. Public Hygiene
• C. Public Sanitation
• D. Personal Hygiene

Answer: (D)

How we describe an individual's daily practices to stay clean and healthy is what this question assesses. Personal hygiene refers to those personal habits and routines—like bathing, handwashing, dental care, nail grooming, and wearing clean clothes—that keep the body clean and reduce the risk of illness. Nutrition focuses on what we eat and how nutrients support the body, not on cleanliness. Public hygiene and public sanitation relate to hygiene and sanitation measures at the community level, such as water quality, waste management, and disease prevention programs, rather than someone’s personal routines. Therefore, the term that best fits “an individual's system of maintaining cleanliness and health” is personal hygiene.