Match Column-I with Column-II:
\[
\begin{array}{ll}
\textbf{Column-I} & \textbf{Column-II}\\
A.\ \text{Homoleptic} & I.\ \text{Complex containing different ligands}\\
B.\ \text{Heteroleptic} & II.\ \text{Ligand having two donor atoms}\\
C.\ \text{Hexadentate} & III.\ \text{Complex containing only one type of ligand}\\
D.\ \text{Bidentate} & IV.\ \text{Ligand having six donor atoms}
\end{array}
\]