Answer:
a) Adding inventory to a process will shorten the average time a unit spends in a process
Explanation:
Depending on the circumstance and challenges of the firm, the huge gains of Just-In-Time(that is avoiding expensive inventories) may be ignored if time is a constraint in service delivery.
For instance if a customer places demand for a product , if the product is already in the warehouse, the firm can deliver it at a shorter time than producing it right away.