Assume That a Price Taker Uses 13 Employee-Hours and an Office

Assume that a price taker uses 13 employee-hours and an office to produce 100 units of output.The price of output is $5,the wage rate is $10,and rent is $200.The firm has total labour costs of

A) $500.
B) $300.
C) $200.
D) $130.
E) $10.