When creating a chart by using data from more than one range, an incorrect method is to?

a) Select the first range of data, and then hold down the control key when selecting additional ranges.

b) Hold down the control key (command key for the MAC) at the beginning, and then select each range of data.

c) Copy and paste the desired ranges of data into a new worksheet, so they form a single range. Generate your chart from this data.

This is a Microsoft Excel question