Every chart has a corresponding that contains the numerical data displayed by the chart.
a. legend
b. worksheet
c. axis
d. series

B) Worksheet

Explanation:

In Microsoft Excel and all the other spreadsheet applications, a worksheet is  a file that contains cells, the cells are an intersections of rows and columns, and it provides the interface where the users can input and modify data, because of the row/column nature of worksheets, a table structure can easily be developed for the organization of data/information from where they can be plotted to a chart. Hence every chart has a corresponding worksheet containing its numerical data.

looking away, slouching, not focusing

explanation: