Orbital angular momentum of an electron, sqrt(l(l+1)) h/2pi

1. A.
   $\sqrt{2}\frac{\text{ }h}{2\pi}$ and 0
2. B.
   $\frac{h}{2\pi}$ and $\sqrt{2}\frac{\text{ }h}{2\pi}$
3. C.
   0 and $\sqrt{6}\frac{\text{ }h}{2\pi}$
4. D.
   0 and $\sqrt{2}\frac{\text{ }h}{2\pi}$

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