Which of the following is a method for controlling inventory?

Proper portioning and weighing of items is an effective method for controlling inventory as it directly affects how much product is used in food preparation and service. By ensuring that each item is portioned correctly, businesses can minimize waste, control costs, and maintain consistency in serving sizes. This practice helps to monitor usage and inventory levels accurately, as it reduces the likelihood of over-preparation or spoilage of ingredients.

In contrast, while creating supplier connections can enhance delivery and freshness of products, it doesn't directly control how much inventory is used or wasted. Increasing store hours might boost sales, but it doesn't inherently improve inventory management practices. Conducting customer surveys can provide insights into preferences and demand, but it does not directly address inventory control. Thus, the method of proper portioning and weighing is the most relevant for effective inventory management.