Steuben Company produces dog houses. During the current year, Steuben Company incurred the following costs:

Rent on manufacturing facility $ 250,000
Office manager's salary 150,000
Wages of factory machine operators 110,000
Depreciation on manufacturing equipment 50,000
Insurance and taxes on selling and administrative offices 30,000
Direct materials purchased and used 170,000

Based on the above information, the amount of period costs shown on Steuben's income statement is:
A) $430,000
B) $150,000
C) $30,000
D) $180,000