Final answer:
Iron (Fe) is the transition metal among the given options. Transition metals have partially filled d orbitals and exhibit characteristic properties.
Step-by-step explanation:
The transition metal among the given options is Fe (Iron). Transition metals are elements that are located in the d-block of the periodic table and have partially filled d orbitals in their atomic structures. They exhibit characteristic properties such as variable oxidation states and the ability to form complex compounds.