Question $29$

Use the following information for Question $28$ & $29$:

A grocery store uses $600$ boxes of plastic bags per month. The boxes cost $$50$ each, placing an order for plastic bags costs $$30,$ and holding costs are $$10$ per box per month.

Assume the store orders boxes in batches of $400$ but no quantity discounts are given.$$Which of the following statements is true?

A$.$

Monthly ordering cost is greater than monthly holding cost.

B$.$

Monthly holding cost is greater than monthly ordering cost.

C$.$

Monthly holding cost equals monthly ordering cost.

D$.$

All of the above statements are true.

E$.$

None of the above statements are true.