Gentry Cabinetry produces two models of home shelving. the Basic and the Mega. Data on operations and costs for November are: Required: Compute the predetermined overhead rate, assuming Gentry Cabinetry uses: (a) Direct labor hours to allocate overhead costs. (b) Direct labor costs to allocate overhead costs. (c) Machine hours to allocate overhead costs. (d) Compute the unit cost for each model using direct labor costs to allocate overhead