Which of these models of the solar system first proved that the sun is at the center of the solar system?

ptolemy's geocentric model
brahe view of the solar system
kepler view of the solar system
copernicus' heliocentric model

i think the answer is c-kepler, because of the word "proved" in the question.
this is why, "kepler used the meticulous notes and data gathered by brahe to make discoveries about the motion of the planets. kepler’s work proved copernicus’s view that the solar system was heliocentric.".
can someone confirm my thinking? hate tricky questions : )