Question

the andromeda galaxy is the next closest galaxy to the milky way. andromeda contains a concentrated bulge of matter in the middle and many disk spiral subways. most of the stars in this galaxy form in the arms. andromeda is | choose * | galaxy

Explanation:

The description notes Andromeda has a central bulge and spiral arms, with most stars in the arms—key traits of this galaxy type.

Answer:

a spiral