Why does the star Bellatrix in Orion look bluish to the naked eye?

Pharmwannabee

New member
This is the last question I have and I can't seem to find the answer in the book, I know it is in there somewhere but I am getting frustrated. Please explain to me which answer from below is correct and why.

Thanks in Advance.

A. The light spectrum emitted by Bellatrix peaks in the blue, and in fact, almost all of its light is concentrated in the blue part of the spectrum.
B. The light spectrum emitted by Bellatrix peaks in the UV. Within the visible part of the spectrum, there is more emission in the blue than in any other color.
C. Bellatrix is moving toward us rapidly enough that its light is appreciably blue-shifted.
D. The chemical composition of Bellatrix contains elements that emit spectral lines predominantly in the blue part of the spectrum.
E. Bellatrix is located in front of a blue reflection nebula, altering its color.
 
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