Each Month the Sales Staff of TechPro Products Makes an Average

Multiple Choice

Each month the sales staff of TechPro Products makes an average of 209 sales calls on prospective customers at a cost of about $4,600 (salary plus expenses) . What is the average cost of a sales call (to the nearest dollar amount) ?

A) $22
B) $25
C) $28
D) $31
E) $34