Didde Corp. reports operating expenses in two categories (1) selling and (2) general and administrative. The adjusted trial balance at December 31, 2017 included the following expense and loss accounts:

Accounting and legal fees - $210,000

Advertising - 290,000

Freight-out - 120,000

Interest - 105,000

Loss on sale of long-term investment - 45,000

Officers' salaries - 335,000

Rent for office space - 330,000

Sales salaries and commissions - 355,000

One-half of the rented premises is occupied by the sales department. Diddie's total selling expenses for 2017 are

A) $930,000

B) $810,000

C) $765,000

D) $645,000

The answer is A, I need an explanation on how this is this answer.