Choose the correct option of diamagnetic lanthanoid/ actinoid ions from the following

Ions without unpaired   are diamagnetic in nature.
$\begin{array}{l}N{d}^{3+}\Rightarrow 4f^{3}T{h}^{3+}\Rightarrow 5f^{1}L{a}^{3+}\Rightarrow 4f^0\\ A{c}^{3+}\Rightarrow 5f^0{U}^{3+}\Rightarrow 5f^{3}G{d}^{3+}\Rightarrow 4f^{7}C{m}^{3+}\Rightarrow 5f^7\end{array}$