A standing order is most beneficial when a buyer?

A standing order is particularly advantageous for a buyer who requires regular and predictable deliveries. This type of arrangement allows a buyer to establish ongoing supply agreements with a vendor for recurring needs, ensuring that they receive the required materials or products consistently without the need to place orders for each individual delivery.

This predictability helps in managing inventory more effectively and can streamline operations, as the buyer doesn't have to repeatedly negotiate terms or worry about potential stock outs. It can also lead to better pricing and terms, as suppliers are often willing to offer discounts or better conditions for guaranteed ongoing business.

The other choices highlight scenarios where a standing order may not provide the same level of benefit. For instance, negotiating lower rates typically requires variability in order quantities or conditions, which doesn't align with the fixed nature of a standing order. A one-time purchase inherently benefits from more flexible arrangements suited to singular transactions, while closely examining each individual order contrasts the very nature of standing orders, which operate under a broader, more routine framework.