Based on a review of the data visualizations, why is the contribution margin less than the gross margin?

A$.$ The traditional approach subtracts variable selling and administrative expenses $($as well as cost of goods sold$)$ from sales when

calculating gross margin, whereas the contribution approach excludes selling and administrative expenses when calculating

contribution margin.

B$.$ The contribution approach subtracts variable selling and administrative expenses $($as well as cost of goods sold$)$ from sales when

calculating the contribution margin, whereas the traditional approach excludes selling and administrative expenses when

calculating gross margin.