Powerful and influential groups called have arisen to finance political campaign, mostly on a national level.
a. political action
b. interest group
c. petition
d. individual

A) Political action

Explanation:

The correct answer is A) political action.

Powerful and influential groups called political action committees have arisen to finance political campaigns, mostly on a national level.

Political action committees organize fundraising campaigns to collect money for political campaigns or to support legislation in Congress. Also known as PACs, these committees are supervised by the Federal Election Commission to oversee the handling of money and assure that it is legal money that is invested in campaigns