The ratio of killed mutants to total non-equivalent mutants generated during Mutation Testing is called:
ABranch Coverage Ratio
BDefect Density Ratio
CMutation Score (Mutation Indicator)
DTest Pass Index
Explanation
Mutation Score measures the quality of a test suite ($ ext{Mutation Score} = rac{ ext{Killed Mutants}}{ ext{Total Mutants} – ext{Equivalent Mutants}}$).

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