Question

I need some help with this problem.

Answer 1

This picture is a graph.  Do you see the marks over on the left side ? 
It says "Brightness".  The Low brightness is on the bottom, and the
High brightness is on the top.  This shows you that the brightest stars
are the highest ones on the graph.

Now look on the graph.  Down near the bottom are Proxima Centauri and
the white dwarfs.  Also, our Sun is not too far up.  Way up near the top, you
see Supergiants.  "Betelgeuse" is on the right side, and "Spica" is on the
left side.  Those are the brightest ones on the graph.

The choices in your question are cut off below the bottom of thepicture.  But
this much discussion should be enough to help you choose the best answer.