Answer: the third option, each sub-level electron type has a unique path where it will likely be found.
Explanations:
1) Bhor's model of electrons orbiting the nucleus of the atom was shown to be wrong.
2) The actual model of the atom is the quantum atom model.
3) The quantum atom model depicts the electron in regions called orbitals.
4) The orbitals are the sublevels of energy (or subshells).
These sublevels (orbitals) are identified with the letters s, p, d, and f.
The orbitals s are spherical, the orbitals p are like a dumbbells, d and f orbitals have weirder shapes.
Those orbitasl are kind of electron clouds. The orbitals are defined as regions of the space around the atomic nucleus where the electrons are likely located.