Multiple Choice
Which of these events is NOT possible?
A) close binary stars producing recurrent novae explosions
B) white dwarfs and companion stars producing recurrent Type I supernova events
C) low- mass stars swelling up to produce planetary nebulae
D) a white dwarf being found in the center of a planetary nebula
E) red giants exploding as Type II supernovae
Correct Answer:

Verified
Correct Answer:
Verified
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