Answer:
The correct answer is A. To make life better for humanity.
Step-by-step explanation:
A is correct answer because thinkers of this period believed that with progress of science and knowledge people can live better and happier life.
B. is wrong as they actually were supporting science and its discoveries.
C. is wrong because they didn't support the role that church had in everyday life.
D. is wrong because they believed that government shouldn't function on the basis of unlimited power of the ruler.