Which of the following is a primary operating expense category in logistics?

In the context of logistics, operating expenses are the costs that a company incurs during its normal business operations. The primary operating expense category typically includes expenditures directly associated with the storage and movement of goods, which encompasses property management and security.

Property management involves maintaining and overseeing the facilities where logistics operations take place, ensuring that warehouses and distribution centers are functional and secure. Security is critical for protecting assets and inventory from theft, damage, or loss, which contributes directly to the efficiency and reliability of logistics services.

In contrast, marketing and advertising, research and development, and staff training and development, while important to a business's overall success, do not primarily fall under operating expenses related to the logistics function. Marketing pertains to promoting services or products, research and development involves creating new offerings, and staff training focuses on improving employee skills, none of which are direct operating costs in the logistics framework.