Which statement describes the heliocentric theory, as stated by copernicus?
a. the moon was at the center of the universe.
b. the stars were at the center of the universe.
c. the earth was at the center of the universe.
d. the sun was at the center of the universe.

I think the correct answer from the choices listed above is option D. The statement that describes the heliocentric theory, as stated by Copernicus would be that the Sun was at the center of the universe. He developed a computational system for a partially heliocentric planetary model, in which the planets orbit the Sun, which in turn orbits the Earth. 

What he said