The operator of a concession at a downtown location estimates that he will sell 430 bags of circus peanuts during a month. Holding costs (annual) are 43 percent of unit price and ordering cost is $7. The price schedule for bags of peanuts is : 1 to 199, $2.5 each; 200 to 499, $2.46 each; and 500 or more $2.44 each. What order size would be most economical ?

a.

97

b.

340

c.

98

d.

76