Answer:
The correct answer is: B) developing a heliocentric theory.
Explanation:
Nicolaus Copernicus was a Prussian monk, mathematician and astronomer from the Renaissance era famous for coming up with the heliocentric theory.
The heliocentric theory proposes that the Sun is in the center of our system and the Earth and the other planets revolve around it. Before this theory, it was believed that the Sun revolved around the Earth (geocentrism).
