Answer:
The correct option here is D) optimum stocking level.
Explanation:
Optimum stocking level can also be termed as optimal stocking level or optimal inventory level, which represents the amount of quantity that covers all the sales in a given period between the two stock arrivals. When the inventory is at optimal level it means the cost incurred would be less , as inventory is required to support sales which means less warehouse space and capital is needed, that will lead to higher return on investment.