Kane Ltd Found Its Maintenance Cost and Sales Revenues to Be

Multiple Choice

Kane Ltd. found its maintenance cost and sales revenues to be somewhat correlated. Last year's high and low observations were as follows: $$\begin{array} { c c } \text { Maintenance Cost } & \text { Sales } \\£ 36,000 & £ 400,000 \\£ 42,000 & £ 600,000\end{array}$$ What is the fixed portion of the maintenance cost?

A) £24,000
B) £42,000
C) £30,000
D) £12,000