Which of the following is violation of (n + l) rule?

The orbital digrame given in the option B  is violation of (n + l) rule

Since$1{\mathrm{s}}^2$ has the following calculation, $\mathrm{n}+\mathrm{l}=1+0=1$,

It is filled first; $2{\mathrm{s}}^2$ has

$\mathrm{n}+\mathrm{l}=2+0=2$, 

It is filled second; and so on, the $\mathrm{n}+\mathrm{l}$ rule is not broken.