What is an E3 galaxy?
A) a galaxy with a smooth light distribution and a moderately elongated elliptical shape without a disk or central bulge
B) a galaxy with a smooth light distribution and a very elongated elliptical shape without a disk or central bulge
C) a galaxy with a smooth light distribution and a moderately elliptical shape, having a pronounced disk and central bulge
D) a galaxy with an irregular light distribution and a very elongated shape
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