Final answer:
The primary responsibility for ensuring food is prepared and served safely in restaurants and other establishments rests with government agencies and is enforced by health inspectors.
Step-by-step explanation:
The responsibility for making sure that food is prepared and served safely is multifaceted. While expert chefs are required to have knowledge of food science, nutrition, diet, and culinary practices to ensure meals are safe and appealing, they are not solely responsible for food safety.
The primary role of ensuring food safety in establishments falls under the jurisdiction of government agencies, such as the Food and Drug Administration and local departments of health, which set and enforce hygiene standards. Health inspectors regularly inspect kitchens in restaurants, but do not do so in home settings. Hence, the answer to the question is health inspector (4).