When ordering vinyl replacement windows, the following variables are specified for each window. Which of these variables is quantitative?

A) window style- double hung, casement, or awning
B) window style- single pane or double pane
C) area of the window opening in square inches

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To identify which variable is quantitative, we need to understand what quantitative variables are. Quantitative variables are numeric and represent measurable quantities or amounts.

Now let's analyze the provided variables:

A) Window style - double hung, casement, or awning
This variable is categorical because it represents different options or categories for the window style. It does not involve numeric values or measurable quantities.

B) Window style - single pane or double pane
Similar to the previous variable, this is also a categorical variable as it represents different options or categories for the window style without involving numeric quantities.

C) Area of the window opening in square inches
This variable, on the other hand, is quantitative because it involves a numeric value representing the size or measurement of the window opening in terms of square inches.

Therefore, the variable "C) Area of the window opening in square inches" is the quantitative variable in the given options.