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

china unilaterally claims the entire south china sea as sovereign territory, then builds artificial islands to bolster its claim. it suddenly activates an air defense identification zone over the east china sea, and threatens to down any aircraft that does not report its position. it builds roads into indian territory, then redraws the maps to show that it is actually chinese territory. the people's republic under president xi jinping is quickly becoming the bully of asia.

i believe it d) heterogeneous