Answer:
The answer to this question is given below in the explanation section.
Step-by-step explanation:
The correct answer to this question is:
=NOW()
Now() is a function that you can use to put today's date and the current time in a cell. While Today() function is a function that can only be used to put today's date.
Other options are not correct because:
If you write NOW() and TODAY() as it is in a cell, then Excel will not consider them as a function. To write a function in a cell, you have to write the "=" symbol before the function name. If you will emit the "=" symbol before the function, then the function name will be consider as text in a cell.