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Unpolarized light passes through two polarizers whose transmission axes are 63.7 degrees apart. What fraction of the intensity incident on the first polarizer, I₀, is transmitted?
A. 0.787 I₀
B. 9.83 × 10⁻² I₀
C. 0.393 I₀
D. 0.590 I₀
E. 0.197 I₀