How is government in the United States today different from government in ancient Athens?

The United States is a direct democracy.

The United States allows citizens to vote.

The United States is a republic.

The United States has a bicameral legislature.

The correct answer is The United States is a republic.

The Athenian state was actually a direct democracy while the US is a representative democracy. Citizens are allowed to vote in both states, and both also have a bicameral legislature. The difference is that the United States are a republic whereas the Athenian state was a city-state meaning that they didn't have a vast land and representatives to represent various parts of the land and people from that area.

The best option would be that " The United States is a republic", since a Republic always implies that most of the legislative power comes from elected officials, and in Athens every citizen could vote directly on issues.