Which aspect does a supplier provide for food service establishments?

A supplier primarily provides equipment and furniture for food service establishments. This includes items like commercial kitchen appliances, dining furniture, utensils, and other essential tools that facilitate the operation of a restaurant or food service facility.

While suppliers can occasionally collaborate on marketing strategies, staff training, or even assist with menu planning through their products' capabilities and trends, their main role revolves around the provision of physical goods necessary for the establishment's daily functioning. Therefore, option B distinctly reflects the core function of a supplier in the food service industry.