Answer:
Correct answer is c. Some residents were not allowed to vote because they weren’t considered citizens.
Explanation:
A is not correct, as Athens had a couple of institutions that were bringing decisions, including Assembly, called Ecclesia.
B is not correct as Athenians were voting, usually by acclamation though.
C is correct as there were a lot of people, even slaves, who didn't have right to vote and participate in the decision making process.
D is not correct, as those who were corrupted could be banned through the process of Ostracism.
