Superman

Now here's deeply confounding a question that just struck me..

Why does superman need that red robe?

a) You miserable physics student, thats there to help in the aerodynamics.

b) It comes in great help when needs to blow his nose.

c)It matches with his underwear.

d)All of above.

Now I almost 1.5 hrs surfing through askmen.com today ,one of those very few sites which are informative , interesting and a pleasure to eyes.:)