13) You notice that the row labels in your spreadsheet are 1, 2, 3, 8, 9. Row labels 4 through 7 are missing. What could cause this?

Rows 4 through 7 are hidden

Rows 4 through 7 are checked out to another user

Rows 4 through 7 contain invalid data

Rows 4 through 7 have been deleted

Explanation:

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yes the ansewer is c bc you can look it up!

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.