Lincoln Company applies overhead based on direct labor hours and has the following available for the current month: Standard: Direct labor hours per unit 6 Variable overhead per DLH PO.80 Fixed overhead per DLH (based on 11,900 DLHs) P2.10 Actual: Units produced 2,000 Direct labor hours 11,900 Variable overhead P9,900 Fixed overhead P25,500 Required: 1. Compute all the appropriate variances using the two-variance approach. 2. Compute all the appropriate variances using the three-variance approach. 3. Compute all the appropriate variances using the four-variance approach