How Is Aluminium Protected from Oxidation?(If Needed, Refer to Table

How is aluminium protected from oxidation?(If needed, refer to Table 17-1in the text)

A) formation of an oxide layer
B) attaching it to a block of zinc
C) coating it with iron
D) Aluminium is not protected from oxidation, since E^o for Al is -1.662 V it will always corrode.
E) Provide a protective paint on the surface of the aluminium metal.