Given:
The box-and-whisker plot of a date set.
To find:
The median of the data represented on the box-and-whisker plot.
Solution:
In a box-and-whisker plot of a data set, the line inside the box represents the median of the data set.
In the given box-and-whisker plot, it is clear that the there is a line inside the box at 45. It means the median of the data represented on the box-and-whisker plot is 45.
Therefore, the correct option is C.