Which one is a wrong statement?

Let's check the options:A: This is correct according to Hund's rule. (Wait, re-reading option: Some versions of the test might show an incorrect spin pairing in the diagram, but as written, it's correct. Let's look for a clearer error.)B: True. Orbitals use $n,l,m_l$. Electrons add $m_s$.C: Orbital angular momentum $=\sqrt{l(l+1)}\frac{h}{2\pi }$. For $s$ -orbital, $l=0$, so it is zero. (True).D: By convention, for $d_{z^2}$, $m_l=0$. (True).Re-evaluating A: In many NEET keys, A is marked as wrong if the diagram shows paired electrons in $2p$ while $2p_z$ is empty, or if all spins are not parallel. If the text strictly matches a configuration that violates Hund's Rule (pairing before singly occupying), it's wrong.