Although the perpetual inventory system updates accounting records after each sale, a physical count is necessary at year-end to identify issues such as and

customer theft; spoilage.

Explanation:

A perpetual inventory system is a type of inventory management that continuously records in real-time the amount of inventory sold or purchased through the use of enterprise software or technological software applications such as a point of sale (POS).

Under a perpetual system of inventory, updates of the journal entry for cost of goods sold or received would include debiting accounts receivable and crediting sales immediately as it is being made or happening. The advantage of the perpetual system of inventory over the periodic system of inventory is that, it ensures the inventory account balance is always accurate provided there are no spoilage, customer theft, etc.

answer; i believe both technician (a) and (b) are correct; /// good luck