Emanuel studies hard for hours on end until bedtime, yet his grades could be better. What can he do to improve his academic performance? sleep less
take breaks
eat more
work longer

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.