Tex's Manufacturing Company can make 100 units of a necessary component part with the following costs: Direct Materials $60,000 Direct Labor 10,000 Variable Overhead 30,000 Fixed Overhead 20,000 If Tex's Manufacturing Company purchases the component externally, $15,000 of the fixed costs can be avoided. At what external price for the 100 units is the company indifferent between making or buying? Select one: O a. $10,000 Ob. $85,000 O c. $115,000 O d. $100,000