Final answer:
Washing hands after using the bathroom or vomiting reduces the number of germs, thus preventing the spread of infection. The correct answer is option B).
Step-by-step explanation:
It is important to wash your hands after using the bathroom or vomiting to ensure that the number of germs will decrease. Germs, such as viruses and bacteria, can be transferred from surfaces or bodily fluids to your hands and then potentially to your mouth, nose, or eyes, leading to possible infection.
Proper hand hygiene is crucial, especially after coming into contact with contaminants. Washing your hands removes these pathogens, hence reducing your risk of disease. Following the CDC guidelines on hand washing is essential, including washing with soap and warm water for at least 20 seconds. This practice is vital, not only to protect yourself but to prevent the spread of illness to others as well.