The Tiny Point Sources of Many Quasars Are Surrounded by a Visual

The tiny point sources of many quasars are surrounded by a visual "fuzz" with a(n) _____spectrum indicating the quasar is within an otherwise normal galaxy mostly of normal sun-like stars.

A) emission line
B) absorption line (on a continuous) visual spectrum
C) continuous synchrotron radio
D) both (a) and (b)
E) all of (a) ,(b) and (c)