The specific characteristics which identify a quasar are?

Question

A.) a star-like appearance and large spectral red shift
B.) star-like appearance and large spectral blue shift
C.) star-like appearance and bright radio source
D.) star-like appearance, bright radio source, and large spectral red shift.

Answer 1

D. they are so far away they look like stars; the full name is quasi-stellar RADIO SOURCE; the distance is determined by the red shift, which means when you view them, you're seeing them as they were millions of years ago.

Answer 2

You know, if you try to cheat on your homework,
there might be those here who might give you silly answers.