No he did not that was a poor choice.
You should select the text by clicking and holding the mouse at the beginning of the text and then dragging it to the end of the area you want to change. You can also use the arrow keys and hold shift, but this takes longer typically.
Answer: c) Click on a different sheet tab at the bottom.
Explanation:
To change between worksheets inside an Excel Workbook : Click on a different sheet tab at the bottom