Unpolarised Light Is Passed Through Three Successive Polaroid Filters, Each $\degree$

Multiple Choice

Unpolarised light is passed through three successive Polaroid filters, each with its transmission axis at 45.0 $\degree$ to the preceding filter.What percentage of light gets through?

A) 0%
B) 12.5%
C) 25.0%
D) 50.0%
E) 33.3%