What Are the Expected Average Quarterly Costs of Running a Consulting

Multiple Choice

What are the expected average quarterly costs of running a consulting practice if fixed costs are expected to be $4,000 a month and variable costs are expected to be $100 per client for each quarter? Expected number of clients for the year are: $$\begin{array} { | c | c | c | c | } \hline \text { Jan-March } & \text { April-June } & \text { July-Sep } & \text { Oct-Dec } \\\hline 110 & 140 & 150 & 100 \\\hline\end{array}$$

A) $12,500
B) $24,500
C) $16,500
D) $19,500