Question

Which type of galaxy is too small for gravity to form it into an easily describable shape?
a. spiral
b. irregular
c. elliptical
d. barred spiral

Answer 1

if you think about it, irregular galaxies dont really have a describable shape, as you can tell by the name. So B. 

Answer 2

The correct answer is B. irregular.

An irregular galaxy is a galaxy too small for gravity to form into a regular shape, or one shaped by collisions or the gravitational pull of other galaxies.