The Fixed Costs of Black Company's Personnel Department Are Allocated

The fixed costs of Black Company's personnel department are allocated to operating departments on the basis of direct labor-hours. The following data have been provided:
$$\begin{array} {r} { \text { Operatirg Department } } \\\begin{array}{ | l | c | c | } \hline & \mathrm { X } & \mathrm { Y } \\\hline \text { Direct labor-hours - Long-run average } & 15,000 & 10,000 \\\hline \text { Direct labor-hours - Actual } & 10,000 & 6,000 \\\hline\end{array}\end{array}$$
The fixed costs of the personnel department are budgeted at $56,000 per year and are incurred in order to support long-run average requirements. How much of this fixed cost should be charged to Operating Department X at the end of the year for performance evaluation purposes?

A) $35,000.
B) $33,600.
C) $52,500.
D) $22,400.