Final answer:
The Fitwel Food Services Standard applies to all types of food service establishments, including restaurants and cafes, fast-food chains, and grocery stores, aiming to promote healthier food options and overall consumer health.
Step-by-step explanation:
The Fitwel Food Services Standard is designed to impact various aspects of food services, including the nutritional quality of the food served, portion sizes, and the promotion of healthier choices through design and policy. Therefore, the correct answer to which types of establishments the Fitwel Food Services Standard applies is D) All of the above, which includes restaurants and cafes, fast-food chains, and grocery stores. The standard aims to improve health outcomes for consumers by addressing the challenges posed by the food industry.