A, I believe. Because after collecting you need to analyze in order to do many other steps. Also all the other answers are something before collecting data
I think it is c
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The running out of the nuclear energy from the star indicates that the star is about to die and it can die in so many ways. The Supernova explosion is one way that the star might die, triggering the beginning of a new star's life cyce. The Supernova is said to be the greatest explosion that can happen in space.
Do you have any answer choices
