Answer :

The answer is to click on the row heading.

Answer:

Click on the Row heading.

Explanation:

When working in a spreadsheet, you will have colums which are the ones named with letters that are  vertically and rows which are the ones named with numbers that are  horizontally. If you want to select an entire row or colum, you just have to go to the heading and click on it. Because of this, the correct process for selecting an entire row in a spreadsheet is to click on the Row heading.