Boswell company manufactures two products, regular and supreme. boswell's overhead costs consist of machining, $3,000,000; and assembling, $1,500,000. information on the two products is: regular supreme direct labor hours 10,000 15,000 machine hours 10,000 30,000 number of parts 90,000 160,000 overhead applied to regular using traditional costing using direct labor hours is select one: a. $1,290,000. b. $1,800,000. c. $2,700,000. d. $3,210,000.