The us constitution has been called the greatest document on the planet. it states "the congress shall have the power to lay and collect taxes on income, from whatever source derived, without apportionment among the several states, and without regard to any census or enumeration." which amendment was added to the constitution that contains this language?
a. 10th amendment.
b. 12th amendment.
c. 14th amendment.
d. 16th amendment.