The answer is D. That tries to influence the government by getting its members elected to office.
Step-by-step explanation:
A political party is a type of political organization created to promote specific politic ideals and proposal as well as get members elected in government to influence politic at a local or national level. Because of this political parties play an important role in elections as they choose members of the party to run for elections and then try to get votes for the party through political campaigns and funding. Additionally, the inner structure and features of political parties vary according to the party. Considering this, it can be concluded a political party is an organization "that tries to influence the government by getting its members elected to office".