Which of the following outer electronic configurations corresponds to the d-block of the periodic table ?

Which of the following outer electronic configurations corresponds to

1.	Which of the following outer electronic configurations corresponds to the d-block of the periodic table ?
Answer» `3s^2 3p^3` `3d^5 4s^1` `3s^2 3p^6 4s^2` `5d^1 6s^2` ANSWER :B::D