Given: 

Number of potential customers = 2,150

 Ideal frequency of calls = 5/year

 Number of existing customers = 850

 Current number of salespeople = 10

 Available selling time per salesperson = 125 hours/month

 Average call = 1.5 hours

 The number of salespeople your firm should hire and train according to the workload approach is about:

a. 180

b. 129

c. 15 

d.  1

e.  5