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Which outcome results when a power plant control rod malfunctions?

A)Uncontrolled chain nuclear reaction occurs
B)Moderator material rapidly degrades structure
C)Coolant experiences phase transition blockage
D)Generator experiences rotor harmonic oscillations

💡 Explanation

Runaway fission occurs because the control rod normally maintains neutron flux. This **neutron absorption** process prevents uncontrolled chain reactions; therefore a runaway reaction happens, rather than other thermal or mechanical failures under normal control.

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