According to the Textbook, Which of the Following Statements Is

According to the textbook, which of the following statements is true about political action committees (PACs) ?

A) They are committees made up of senators who work together on financial issues that the president recommends.
B) They have little influence on presidential elections.
C) They provide about a third of the funding for congressional elections.
D) They are legally barred from giving political opinions publicly during the months leading up to an election.