A.
$\Delta n =\pm 1,F_{n'n}=qE_0\sqrt{\frac{\hbar}{2m\omega_0}}(\sqrt{n+1}\delta_{n',n+1}+\sqrt{n}\delta_{n',n-1})$
B.
$\Delta n =\pm 1,F_{n'n}=qE_0\sqrt{\frac{\hbar}{2m\omega_0}}(\sqrt{n+1}\delta_{n',n+1})$
C.
$\Delta n =0,F_{n'n}=qE_0\sqrt{\frac{\hbar}{2m\omega_0}}(\sqrt{n+1}\delta_{n',n+1}+\sqrt{n}\delta_{n',n-1})$
D.
$\Delta n = 0,F_{n'n}=qE_0\sqrt{\frac{\hbar}{2m\omega_0}}(\sqrt{n+1}\delta_{n',n+1})$