Question

which type of galaxy has arms that contain sites of active star formation and start close to a bulge in the center?
elliptical
irregular
barred spiral
normal spiral

Explanation:

Barred spiral galaxies have arms that start close to a central bulge and often contain regions of active star - formation due to the presence of gas and dust in the arms which can collapse to form new stars. Elliptical galaxies have little star - forming material. Irregular galaxies lack a defined structure like arms starting from a central bulge. Normal spiral galaxies have arms but the description specifically fits barred spirals better.

Answer:

C. barred spiral