Which of the Following Statements Concerning the Public Funding of Presidential

Which of the following statements concerning the public funding of presidential campaigns is incorrect?

A) Federal law requires the presidential candidates from the major parties to use public funding during the general election.
B) Many presidential candidates are opting not to accept public funding in order to be free of any spending restrictions.
C) Third parties can receive public funding only if they received 5 percent of the vote in the previous presidential election.
D) Taxpayers may contribute to the public funding of presidential campaigns, at no cost to themselves, on their federal income tax forms.
E) Candidates who accept matching funds may spend no more than $42 million, including matching funds, in their presidential primary campaigns.