A political party has three components.

Explanation: A political party is composed of three parts:

Those in charge of formulating the party's policies and programs, as well as selecting candidates to run for office are the party leaders.

Members who are involved in the party's various committees and actively participate in their activities are active members.

Those who believe in the party's ideas and vote in favor of the party during elections are the followers.

Final Answer: 

Hence, the correct answer is option (D) i.e. The leaders, the active members and the followers.