Answer:
C. calculating how much tax should be withheld from a person's paycheck
Step-by-step explanation:
In order to ensure that, all employees pay taxes on the income earned throughout the year, the internal revenue service (IRS) has made it compulsory and mandatory for all employers to make available a W-4 Form to all their employees, so as to enable these employees fill out how much income tax is to be withheld from their respective paycheck in relation to their filing status.
Hence, a W-4 form is used for calculating how much tax should be withheld from a person's paycheck and submitted to the internal revenue service (IRS).
Additionally, any employee who defaults in the payment of his or her income tax would be faced with stiff penalties such as failure-to-file, paying a fine etc.