2Al(s) + Fe$_2$O$_3$(s) $\rightarrow$ Al$_2$O$_3$(s) + 2Fe(l)
This reaction is a redox reaction with Fe$_2$O$_3$ being oxidized and Al being reduced.
This reaction is a redox reaction with Al being oxidized and Fe$_2$O$_3$ being reduced.
This reaction is a redox reaction with Al being oxidized and Al$_2$O$_3$ being reduced.
This reaction is not a redox reaction.