Final answer:
To shade every other row in a PowerPoint table, select the 'Banded Rows' option on the Table Tools Design tab to automatically format alternate rows with different background colors.
Step-by-step explanation:
If you want to shade every other row in a PowerPoint table, you should select the Banded Rows option on the Table Tools Design tab. This feature automatically formats the table so that every other row, also known as alternate rows, has a different background color, making the data easier to read. It's important to note that the other options listed, such as Shade Rows, Alternate Rows, and Color Rows, are not standard options within PowerPoint's Table Tools Design tab.