The correct options are
A The British monarchical system underwent drastic changes during the years 1688–89.
C After gaining independence, the US framed a democratic constitution which came into force in 1789.
D The French Revolution lasted between 1789-99. France revolted against the king and overthrew the monarchy.
1. Developments in the USA, Britain, and France were important milestones in the development of democracy. The Glorious Revolution in Britain, the American Revolution, and the French Revolution all displaced existing monarchical/colonial structures and granted greater power to the people.
2. Voltaire and Rousseau were among the influential thinkers of the Renaissance, while Montesquieu is known as one of the greatest political philosophers of the Enlightenment.