Answer:
b. stockout costs
Step-by-step explanation:
Stockout cost is the cost in which the income is lost or the expenses that are attached to the inventory shortage
It can be occurred in two ways
1. Sales-related: In the case when the customer wants to order a product but at that time the stock is not available so here the company lost the gross margin
2. Inside process-related: This would arised when the company required inventory for running a production but at that time the inventory is not available so the company could incurred extra cost to purchase the inventory
So by above there is an interruption of a service
Therefore the option b is correct