Marilee Company produced 6,000 units of product Y, which is 80% of capacity. Each unit required .25 standard machine hours for production. The standard variable factory overhead rate is $5.00/machine hour. The actual variable factory overhead incurred during the period was $8,000. The variable factory overhead variance (controllable)is: A. $500 favorable B. $500 unfavorable C. $1,875 favorable D. $1,875 unfavorable