Bhavik's Accounting Services Uses Job Costing and Applies Overhead Using

$\begin{array}{lccc}&\text { Professional} & \text { Other Direct } & \text {Professional }\\&\text { Labour Cost } & \text { Costs } & \text { Labour Hours }\\\text { Client } 57 & \$ 2,000 & \$ 800 & 20 \\\text { Client } 58 & 1,000 & 200 & 10 \\\text { Client 59 } & 5,000 & 600 & 50\end{array}$ Bhavik's Accounting Services uses job costing and applies overhead using a normal costing system using professional labour hours as the allocation base. This period's estimated overhead cost is $400,000, estimated professional labour cost is $800,000 and estimated direct labour hours are 8,000. This period actual overhead cost was $426,400, actual direct labour cost was $820,000, and actual direct labour hours were 8,200.
What is the overhead allocation rate?

A) $60/hour
B) $55/hour
C) $52/hour
D) $50/hour