The Star Aldebaran Is a Red Giant, and Is Much

Multiple Choice

The star Aldebaran is a red giant, and is much more luminous than the Sun. What conclusions can be drawn from this fact?

A) Aldebaran is hotter and much more massive than the Sun.
B) Aldebaran is cooler than the Sun, but has larger diameter than the Sun.
C) In the H-R diagram, Aldebaran is above and to the left of the Sun.
D) Aldebaran is a binary star.
E) None of these choices is correct.