The set that contains atomic numbers of only transition elements, is

A transition element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of the oxidation state $\mathrm{Zn}(z=30),\mathrm{Cd}(z=48),\mathrm{Hg}(z=80)$ are not transition element.

Transition elements = 21 to 30

37 to 48

57 & 72 to 80