Answer:
The answers are 2, 3, 4.
Step-by-step explanation:
1st and 6th options are incorrect. It was Copernicus that developed the Heliocentric theory. And it was Francis Bacon that developed the scientific method.
Copernicus' and Galileo's astronomical findings hugely influenced the modern science and challenged the Catholic church's ideas adversely.
Moreover, John Locke is considered as the father of liberalism and his views greatly challenged the then prevailing monarchy system.
Montesquieu's theory of separation of powers is widely used in many constitutions today and tremendously influenced the system of governance in European nations.