Which of the following statements are correct postulates of VSEPR theory?

These pairs of electrons tend to occupy such positions in space that minimise repulsion and thus maximise distance between them
 

The valence shell is taken as a sphere with the electron pairs localising on the spherical surface at maximum distance from one another.

The shape of a molecule depends upon the number of valence shell electron pairs
(bonded or non-bonded) around the central atom

Pairs of electrons in the valence shell repel one another since their electron clouds are negatively charged