Question

which phrase describes an irregular galaxy? has a round shape does not have a specific shape has arms that extend from the center is larger than other types of galaxies

Explanation:

Irregular galaxies do not have a specific shape. Regular galaxies like spirals have arms extending from the center and ellipticals are round - shaped. Irregular galaxies are not larger than other types of galaxies by definition.

Answer:

C. does not have a specific shape