Answer:
C. =ROUND(number, 0)
Explanation:
The ROUND function in MS Excel is used in rounding off numbers input in the function to a specified number of decimal places
The cell address containing the original number to be rounded off, or the original number is entered as the first argument of the function, while the second argument is the number of digits the original number is to be rounded to
In order to round to the nearest whole number, the second argument would be 0 which result in the removal of the numbers after the decimal place and rounding the last integer on the bases of the value of the number after the decimal point
Therefore, to round the original number to the nearest whole number, the function Walden should use is =ROUND(number, 0).