Could someone explain this bonding and anti-bonding concept to me really quick???10pts

If the x-axis is the direction of approach of two atoms, indicate which of the
following orbital combinations will result in both bonding and antibonding
orbitals: (i) s and px;
(ii) pz and pz;
(iii) py, and px;
(iv) dxz, and dxz?

If the approach is along the x axis then any orbitals with electron density along the x axis can overlap to give bonding and anti-bonding orbitals. Also any orbital perpendicular to the x axis can overlap with a parallel orbital on the other atom to give bonding and anti-bonding orbitals. So

i) yes, both have electron density along x axis
ii) yes, they are parallel
iii) no, they are not parallel
iv) yes (not 100% sure here) they have components in the x axis direction and components that are parallel. So can overlap as the atoms come together

1 when s and px orbitals combine they give both bonding and anti bonding orbitals