Hey there!
Here is your answer:
The proper answer to this question is option A "spiral".
Reason:
A spiral galaxy has a little rotation, but not enough to flatten out. Spiral galaxies consist of a flat, rotating disc containing stars, gas and dust. These galaxies contain what any other galaxy would have for example: Stars, planets, moons, etc...
Therefore the answer is option A.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit