Which of the Following Best Describes the Width of the Box

Short Answer

Which of the following best describes the width of the box in the box-and-whisker plot? $\begin{array}{|l|l|}\hline A&\text {The width of the box is the median. }\\\hline B&\text { The width of the box is the range.}\\\hline C&\text {The width of the box is the interquartile range. }\\\hline D&\text { The width of the box is the standard deviation.}\\\hline \end{array}$