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Which outcome results when helium fusion stalls inside a supergiant star?

A)Gravitational core collapse accelerates rapidly
B)Neutrino production rate steadily decreases
C)Convective heat transfer reverses direction
D)Radiative pressure outwards momentarily dominates

💡 Explanation

Gravitational core collapse accelerates due to reduced energy production. Helium fusion supports the core via radiation pressure; when it stops, this pressure vanishes, because the outward thermal force is now insufficient, therefore core collapse starts, rather than outward expansion.

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