Roman civilization emerged around the sixth century BC. At the height of (1)______ power, the Roman Empire ruled over a huge chunk of (2)______, and all the present-day Mediterranean countries (3)______ part of ancient Rome. Early Rome was (4)______ by kings, but later, the people took control over their own city and ruled (5)______. They introduced a council known as the Senate which ruled over them. From this point, Rome was referred to as the Roman Republic.
Select the most appropriate option for blank number 4.