Manipal Entrance Test 2016 Chemistry Paper

According to Pauli exclusion principle, no two electron in an atom can have the same set of four quantum numbers.
Hund's rule states that the pairing of electrons in the orbital of a particular sub-shell (p,d or f) does not take place until all the orbitals of the subshell are singly filled.
Option I and II do not follow Hund's rule and Paulis exclusion principle.