Which of the following assesses the role political parties play in administering government at the national level?

A. Political parties determine the number of U.S. representatives at the national level.
B. Political parties use a strategy called gridlock to create a plank at the national level.
C. Political parties use a strategy called gridlock to create laws and policies at the national level.
D. Political parties dictate laws and policies that are implemented at the national level.

D. Political parties dictate laws and policies that are implemented at the national level.

This statement assesses the role political parties play in administering government at the national level. While the word "dictate" might be a bit strong, as it doesn't account for the need for compromise and the role of other political entities and processes, political parties do indeed play a crucial role in shaping laws and policies through the elected officials that represent them.

Option A is incorrect because the number of U.S. representatives is determined by the United States Census, not by political parties.

Option B is also incorrect because "gridlock" is generally a term used to describe a political stalemate or situation where there is difficulty in passing laws due to opposing parties blocking each other, not a strategy to create a plank. A "plank" is an individual component of a political party's platform.

Option C is incorrect for similar reasons as B; gridlock refers to a stalemate situation, not a strategy for creating laws and policies.