Answer:
The answer is Option D. The United States has a federal government that handles national affairs and states that have their own governments.
Step-by-step explanation:
The United States has a presidential government system, whereas other countries like England have a parliamentary system. In a presidential system, the people choose the executive leader (the President) directly. In a parliamentary system, people vote for the party and technically it is the legislators who are a member of that party who chose their leader. So, in a parliamentary system voters do not select the leader directly like in a presidential system. The United States is also a federal system where power is shared in the national system and the individual states.