Which of the following might be an application of polarization?
a).glare-reducing sunglasses
b).3d movies
c).lcd watches and calculators
d).all of the above

I believe the correct answer would be all of the above choices. Polarization is a property of an electromagnetic wave where the magnitude and the direction of the electric field are being related in a way. This property is used in many applications like glare-reducing glasses, 3D glasses and the like.

No its just makes the straight guy curious

This type of galaxy is an approximately ellipsoidal shape and a smooth, nearly featureless image. they are the largest single star systems, in the universe and are built by the collisions of many smaller galaxies.