Which of the following set of quantum numbers is correct for the $19^{th}$ electron of chromium?
$n$ $l$ $m$ $s$

• A
  $n=3, l=0, m=0, s=1/2$
• B
  $n=3, l=2, m=-2, s=1/2$
• C
  $n=4, l=0, m=0, s=1/2$
• D
  $n=4, l=1, m=-1, s=1/2$