Place the steps in order for customizing the outlook ribbon

click the file tab, then options, click the customize ribbon, click the add new tab button, rename the tab and command group, add a command to the group

Explanation:in that order, just did it.

solution:

the right option is a

to adding   a new row to a table we   have to do process last table cell and pressing tab.

this is the process to add new row in the cell:

* to add a row below the cell, click insert below in the rows and columns group.

thus this is the required right answer.