Presented Below Is the Production Data for the First Six

Presented below is the production data for the first six months of the year showing the mixed costs incurred by Columbia Company. $$\begin{array} { l l r } \text { Month } & \text { Cost } & \text { Units } \\\text { July } & \$ 7,500 & 4,000 \\\text { August } & 10,250 & 6,500 \\\text { September } & 10,500 & 8,000 \\\text { October } & 12,700 & 10,500 \\\text { November } & 13,500 & 12,000 \\\text { December } & 10,850 & 9,000\end{array}$$ Columbia Company uses the high?low method to analyze mixed costs.The total fixed cost rounded to the nearest dollar) is _____.

A) $10,500
B) $10,417
C) $4,500
D) $4,000