Which of the following shows the ground-state electron configuration of an atom of a transition metal?
[Ar]4s23d0\text{[Ar]} 4\text{s}^2 3\text{d}^0[Ar]4s23d0
[Ar]4s23d5\text{[Ar]} 4\text{s}^2 3\text{d}^5[Ar]4s23d5
[Ar]4s23d10\text{[Ar]} 4\text{s}^2 3\text{d}^{10}[Ar]4s23d10
[Ar]4s23d104p4\text{[Ar]} 4\text{s}^2 3\text{d}^{10} 4\text{p}^4[Ar]4s23d104p4