Final answer:
Option B. Wearing a visor, hair net, or hat is important to keep loose hairs from contaminating food, particularly before serving.
Step-by-step explanation:
Wearing a visor, hair net, or hat is important to keep loose hairs from contaminating food. These measures should be taken before serving the food. Loose hairs can carry bacteria and other contaminants, so it is crucial to prevent them from getting into the food during preparation and serving.
For example, in a restaurant or food establishment, employees who handle food are required to wear hair restraints like visors or hair nets to maintain proper food hygiene. This helps prevent any stray hairs from falling into the food and causing contamination.
By wearing a visor, hair net, or hat, food handlers can reduce the risk of contaminating the food with loose hairs, ensuring a safe and hygienic dining experience.