Question: The 1976 Supreme Court case Buckley v. Valeo invalidated some of the campaign finance regulations set by the 1971 Federal Election Campaign Act (FECA). Which of these actions is now allowed as a result of Buckley v. Valeo? a.) Corporations can donate unlimited amounts of money to super PACs. b.) Individuals and PACs may donate unlimited amounts of money to a single candidate. c.) Candidates may spend unlimited amounts of personal money on their campaign. d.) Individuals and PACs may donate unlimited amounts of money to a national political party.