Answer:
What do you want me to do in this question?
The hypothesis is #1 - if it is the holiday season (:
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Answer:
Mass determines how hot the stellar core gets in response to gravitational contraction, and since the rate of nuclear burning is very sensitive to temperature, a star's mass determines the energy production rate and whether/when gravitational contraction can lead to explosive release of energy
Explanation:
What do you mean and how is this a question?