Which of the following are true?

A) Auras are real and have color
B) Auras are real but the color is projected
C) The aura and its color are projected, representing other psychically acquired impressions
D) The aura and its color are projected, incorporating viewer assumptions which draw on impressions from the other senses

I've posted this kind of question before, but it seems relevant to the recent discussions of astral travel. If you can see auras, you don't have to be asleep to do experiments. And I think that if you can obtain any kind of evidence for 'A' or 'B', that will be relevant to astral travel also. The aura would be made of astral matter, presumably, and the two must be related in any case.

I have never seen an aura.

After three years of asking, my hypothesis is still that no astral stuff is real, that its all projections, though it may incorporate some other kind of knowledge acquired at a distance. In other words, in relation to auras, I speculate that C and D are true. Learning otherwise would be great though.