Mesa Telcom Has Three Divisions,commercial,retail,and Consumer,that Share the Common Costs

Mesa Telcom has three divisions,commercial,retail,and consumer,that share the common costs of the company's computer server network.The annual common costs are $2,400,000.You have been provided with the following information for the upcoming year:
$$\begin{array} { | l | r | r | } \hline & \text { Connections } & \begin{array} { r } \text { Time on } \\\text { Network (hous) }\end{array} \\\hline \text { Commercial } & 60,000 & 120,000 \\\hline \text { Retail } & 80,000 & 150,000 \\\hline \text { Consumer } & 100,000 & 330,000 \\\hline\end{array}$$ What is the allocation rate for the upcoming year,assuming Mesa Telcom uses the single-rate method and allocates common costs based on the number of connections?

A) $10.00.
B) $15.00.
C) $20.00.
D) $40.00.