Your company is considering granting credit to a new customer for a one time sale. The variable cost per unit is $30; the current price per unit is $60; and the monthly required return (cost of capital) is 2%. What probability of default for the new customer would make the firm break even when granting credit for the one time sale?

A) 2%

B) 49%

C) 51%

D) 98%

E) 99%