Question

the heliocentric theory is best described as a theory that identifies the sun as the center of the universe, with planets revolving around it identifies the earth at the center of the universe, with planets revolving around it establishes that the earth is stationary establishes that the moon is stationary

Answer 1

The answer is the first one: the heliocentric theory says that the sun is at the center of the universe
(helio- =sun)
(-centric=center)

Answer 2

The heliocentric theory is best described as a theory that identifies the sun as the center of the universe, with plants revolving around it. According this theory, which was proposed by Nicolaus Copernicus  in 1543 the sun is at the centre of the universe and we move around it along with all the other planets, referred to as the Heliocentric Model of the Universe.