Which of the metals listed below can be used as reducing agents to reduce metal oxides to metal?

Highly reactive metals can displace metals of lower reactivity from their compounds. So they act as reducing agents for other metals. Consequently, a metal can be obtained from a metallic oxide. Out of the given options, aluminum is the metal which can act as a reducing agent. For example, when manganese dioxide is heated with aluminum, it reduces the metal oxide to manganese metal. Rest of the options are examples of oxidising agents.