Answer:
The correct answer is C. Eligible voters can vote for all the following, except electors in the Electoral College.
Step-by-step explanation:
In the United States, the presidential election system is indirect, which means that while citizens vote for presidential candidates in elections, what they do is designate electors, who are conditioned to vote for the presidential candidate that citizens designate.
In the case of the Senators and other Congressmen, they are also elected by the citizens, but by their direct vote.
Instead, the electors of the Electoral College are designated as such by the state committees of each Party.