Answer:
The correct answer is A "by the development of representative government"
Step-by-step explanation:
When citizens hold power over the government, they elect their government representatives to rule them. This type of government known as democracy. The word "democracy" originated from a Greek word dēmokratía, which means "rule by people" in the 5th century BC.
Governments of the Romans and Greeks influenced our modern Western governments because those were the states in which supreme powers were elected by the people and their elected representatives.
On the other hand, option C and option D do not reflect the modern western governments while option B is also considered as a benefit of democracy.