Betelgeuse is the bright red star representing the left shoulder of the constellation Orion. All the following statements about Betelgeuse are true. Which one can you infer from its red color?
A) It is much brighter than the Sun.
B) It is much more massive than the Sun.
C) It is moving away from us.
D) Its surface is cooler than the surface of the Sun.
Correct Answer:
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