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Which risk increases within the stellar core when helium fusion abruptly accelerates?

A)Gamma-ray opacity decreases significantly
B)Hydrostatic equilibrium rapidly fails
C)Neutrino luminosity stabilizes quickly
D)Radiative zone expands isothermally

💡 Explanation

Hydrostatic equilibrium rapidly fails because degenerate core conditions trigger runaway helium fusion via the triple-alpha process, leading to a helium flash. This causes a loss of pressure balance, resulting in instability, therefore the energy output increases steeply rather than gradually adjusting.

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