Suppose you have a programmer-defined data type Data and want to overload the << operator
to output your data type to the screen in the form cout << dataToPrint; and allow
cascaded function calls. The first line of the function definition would be
(a) ostream &operator<<(ostream &output, const Data &dataToPrint)
(b) ostream operator<<(ostream &output, const Data &dataToPrint)
(c) ostream &operator<<(const Data &dataToPrint, ostream &output)
(d) ostream operator<<(const Data &dataToPrint, ostream &output)

(a) ostream &operator<<(ostream &output, const Data &dataToPrint)

Explanation:

If you have a programmer-defined data type Data and want to overload the << operator to output your data type to the screen in the form cout <<dataToPrint; and allow cascaded function calls.

The first line of the function definition would be;

ostream &operator<<(ostream &output, const Data &dataToPrint)

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.