Big Budget Co. has the following data:

Annual inventory demand is 90,000 units.

Cost of ordering (including clerical costs, receiving and inspecting costs) is $75.

Annual holding costs for inventory are $6 per unit.

Cost of inventory is $10 per unit.

The number of orders in a year (based on existing EOQ) is:

Select one:

a.165 orders p.a.

b.750 orders p.a.

c.78 orders p.a.

d.60 orders p.a.