From the Information Given Below, the Economic Order Quantity (EOQ)

From the information given below, the economic order quantity (EOQ) for Shinebird Textiles is _____. Ordering cost = $10 per order
Carrying cost = 20% of purchase price
Purchase price = $10 per unit
Total sales for year = 1,000 units

A) 250 units
B) 100 units
C) 300 units
D) 900 units
E) 150 units