The Specific Characteristics That Identify Most Quasars Are

The specific characteristics that identify most quasars are

A) star-like appearance,very high redshifts,and hence very large distances,indicating very energetic sources.
B) that they look like elliptical galaxies,but with high spectral redshifts.
C) spiral galaxy appearance and very high spectral blueshift,indicating that they are coming toward the Sun at high speed.
D) star-like appearance,and very high spectral blueshift,indicating that they are approaching the Sun very rapidly.