The company's usage of direct labor in a recent quarter is given in the following table: Actual direct labor hours used 35,000 Actual rate per hour $20.00 Standard rate per hour $19.50 Standard hours for units produced 34,000 How much is the direct labor rate variance? A. $17,500 unfavorable B. $17,000 favorable C. $17,500 favorable D. $17,000 unfavorable