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Which outcome occurs as gravitational confinement increases around protostar deuterium?

A)Ignition of deuterium-deuterium fusion
B)Increased protostar convection cooling
C)Higher escape velocity for hydrogen
D)Deuterium photodisintegration via gamma rays

💡 Explanation

Increasing gravitational confinement compresses and heats the deuterium core, therefore, sustained deuterium-deuterium fusion begins via thermonuclear fusion, rather than alternative processes like photodisintegration, which requires high energy photons and specific isotopes.

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