Answer:
C: Presenting arguments as a "friend of the court" brief in a lawsuit.
Explanation:
An interest group can be defined as a group of people sharing common aims, ideas and concerns, which seeks to influence government or a public policy.
This ultimately implies that, the interest groups consists of individuals who are only concerned about influencing public policy of the government on the basis of a particular common aim and interest.
The public action committee is an example of an interest group. In the United States of America, the public action committee was formed from the labor movement in July 1943 after the U.S. Congress prohibited unions from giving direct support and contributions to political candidates. Thus, public action committees are created by interest groups primarily to influence elections by raising and distributing campaign funds to political candidates.
Other examples of interest groups are labor groups, environmental interest groups, animal rights groups, etc.
Furthermore, an example of the use of litigation by an interest group is presenting arguments as a "friend of the court" brief in a lawsuit because the testimonies (arguments) are done with some level of bias with respect to achieving a favorable judgement from the court.
