Star C is a red star.Star D is a blue star.Which has a larger radius?
A) Star C has a larger radius.
B) Star D has a larger radius.
C) Stars C and D have the same radius.
D) We also need to know the luminosities of the stars to determine their radii.
E) We also need to know the age of the stars to determine their radii.
Correct Answer:
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