If we take the nuclear spin / into account, the total angular momentum is F = L+S+I, where I and S are the orbital and spin angular momenta of the electron. The Hamiltonian of the hydrogen atom is corrected by the additional interaction (L+5), where >0 is a constant. The total angular momentum quantum number F of the p- orbital state with the lowest energy is (a) 0 (b) 1 (c) 1/2 (d) 3/2