Answer:
3) Copernicus
Step-by-step explanation:
Heliocentrism is the name of the cosmological structural model that places the sun at the center of the universe.
Although raised by several researchers, it was the Polish Nicholas Copernicus (1473-1543) who presented in 1530, the mathematical model that most closely approximates heliocentrism after about 30 years of observation.
Copernicus's main concepts pointed to the earth revolving around itself as one of the six known planets orbiting the sun.