Chaffee Corporation Staffs a Helpline to Answer Questions from Customers

Multiple Choice

Chaffee Corporation staffs a helpline to answer questions from customers. The costs of operating the helpline are variable with respect to the number of calls in a month. At a volume of 33,000 calls in a month, the costs of operating the helpline total $742,500.
-To the nearest whole dollar,what should be the total cost of operating the helpline costs at a volume of 34,800 calls in a month? (Assume that this call volume is within the relevant range. )

A) $742,500
B) $783,000
C) $704,095
D) $762,750