The roman republic lasted about how many years?

It began with the overthrow of the Roman monarchy, c. 509 BC, and lasted over 450 years until its subversion in 29 BC, through a series of civil wars, into the Principate form of government and the Imperial period.

Over 1000 years... It began with the overthrow of the ROMAN monarchy c. 509 BC and lasted 450 years until its subversion in 29 BC

The answer is option e.