Consider the following information attributed to the material management department Budgeted usage of materialsminushandling laborminushours 3 comma 900 Budgeted cost pools: Fixed costs $ 163 comma 800 Variable costs $ 128 comma 700 (3 comma 900 hours x $ 33 per hour) The company uses the singleminusrate method to allocate support costs to the Machining and Assembly Departments. Assuming that the actual hours tracked in the Machining and Assembly department are 420 for the month, what would be the allocation rate and how much cost would be allocated to the Machining and Assembly Department for the operations of the month? (Round final answers to the nearest dollar.) A. $ 33 an hour for a total of $ 31 comma 500 B. $ 75 an hour for a total of $ 31 comma 500 C. $ 696 an hour for a total of $ 75 D. $ 33 an hour for a total of $ 13 comma 860