According to Aristotle a "good" government:

a. was usually a monarchy

c. was an oligarchy

b. was any government that made decisions in the interest of its people

d. was any government that focused on culture

The best answer would be "democracy" - Aristotle specifically compared democracy to other forms of government and found it the least corrupt.

He disliked Monarchy and oligarchy for the monarchs tend to be tyrants. He did not mention culture so the best answer is:

b. was any government that made decisions in the interest of its people