Carmel Company Uses 810 Units of a Part Each Year

Multiple Choice

Carmel Company uses 810 units of a part each year. The cost of placing one order is $10; the cost of carrying one unit in inventory for a year is $4.
-Refer to Carmel Company.Carmel has decided to begin ordering 60 units at a time.What is the average annual carrying cost of Benton's new policy?

A) $5
B) $30
C) $120
D) $180