Fischer's Furniture Sells 2400 Sofas a Year at an Average

Fischer's Furniture sells 2400 sofas a year at an average price per sofa of $1250.The carrying cost per unit is $11.60.The company orders 80 sofas at a time and has a fixed order cost of $52 per order.The sofas are sold out before they are restocked.What is the economic order quantity?

A) 147 sofas
B) 171 sofas
C) 211 sofas
D) 162 sofas
E) 188 sofas