What feature distinguishes the heliocentric model from the geocentric model?

Question

the placement of the Sun at the center of the solar system
the placement of the Sun at the center of the solar system

circular orbits
circular orbits

the placement of the Earth at the center of the solar system
the placement of the Earth at the center of the solar system

elliptical orbits

Answer 1

The placement of the Sun at the center of the solar system distinguishes the heliocentric model from the geocentric model.