A partial listing of costs incurred during December at Rooks Corporation appears below:

Factory supplies	$	10,000
Administrative wages and salaries	$	107,000
Direct materials	$	155,000
Sales staff salaries	$	70,000
Factory depreciation	$	51,000
Corporate headquarters building rent	$	36,000
Indirect labor	$	34,000
Marketing	$	105,000
Direct labor	$	85,000

The total of the period costs listed above for December is:

A) $335,000

B) $95,000

C) $318,000

D) $407,000