Themost Fashionable Pair of Roller Skates Sells for $45

Themost fashionable pair of roller skates sells for $45.99 a pair. Your store consistently sells 8,500 pairs of these roller skates year after year. The fixed costs to order more of this item is $70 and the
Carrying costs are $2.80 per pair. What is the economic order quantity?

A) 184 units
B) 309 units
C) 461 units
D) 525 units
E) 652 units