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 : )

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes. t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone

What is the relationship between the direction of motion of the balloon and the wind currents