A(n) signal is a discrete, binary waveform that transmits data coded into two discrete states such as 1-bits and 0-bits.

The signal that is being pertained above that gives a discrete and binary waveform in which data is being transmitted with codes in a states that are two discrete is the digital signal. This signal also has the capability of representing the data in a way that it is sequences based on its discrete values.

so much for the extra points :

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.