At a production level of 40,000 units, Rippon Pty Ltd had the following manufacturing costs: Prime Costs $ 340,000 Fixed Factory Overhead $60,000 Variable Factory Overhead $100,000 If 50,000 units were produced, the expected total cost of production is: 

Select one: 

a. $500,000 

b. $610,000 

c. $550,000 

d. $425,000