Which of the Following Was One of the Requirements of the Federal

Which of the following was one of the requirements of the Federal Election Campaign Act?

A) All campaign funds must be spent within the state where the candidate is running for election (or in any state for presidential candidates) .
B) Candidates for Congress must contribute at least 10 percent of their net worth to the campaign.
C) Congressional campaigns cannot accept contributions of more than $100 from individual citizens.
D) All candidates for federal office must disclose who contributed money to their campaigns.