A sizable majority of US voters are concerned about the influence of large campaign donations on candidates for public office. Bowing to pressure from constituents, Congress passes a law restricting how campaign money can be spent, how much can be donated, and to whom these donations can be given. The president signs the law. Which of the following statements describes a way that people opposed to the law could use the constitutional system of checks and balances to legally challenge the restrictions placed upon them by the law?

Candidates for office could request that potential donors give money directly to them rather than to their campaigns.
Individuals or groups affected by the law could file a lawsuit claiming that the law infringes upon their right to free speech.
Candidates for office could seek donations from international sources to avoid domestic restrictions on campaign contributions.
Individuals or groups seeking to bypass the new restrictions could give money to friends and coworkers to donate on their behalf.