What is the likely reason that we cannot find any examples of the first generation stars?
A) The first generation stars are too faint to be visible now.
B) The first generation stars formed such a long time ago that the light from them has not yet had time to reach us.
C) The first generation stars were all very massive and exploded as supernova.
D) The first generation stars formed with only H and He and therefore have no spectral features.
E) We do not know how the first generation stars were formed.
Correct Answer:
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