Which model is most similar to that of aristarchus?

A. First one with Sun at the center.

Explanation:

Aristarchus was a Greek scientist who proposed the theory that its not Earth which is fixed, its the Sun that has a fixed position and is placed at center where are all other planets are located at some distance from it and revolve around it.

This theory is referred as "Heliocentric".  His theories were even attributed by Nicolaus Copernicus and was even know as Copernicus heliocentrism.

we need to know the time interval during which the force acts. impulse of force = momentum change