What does the two s’s mean on this xbox one s

The two S's just mean it's a USB 3.0 port which is just a USB port that lets you use flash drives and stuff.

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.