During a redesign process in the measure performance stage:

Select one:

$$ a$.$ an appropriate metrics is developed for measuring the performance of the personnel, products, activities, and tasks

$$ b$.$ an approximate metrics is developed for measuring the performance of som process$($es$),$ sub processes, activities, and tasks

$$ c$.$ an appropriate metrics is developed for measuring the performance of the process$($es$),$ sub processes, activities, and tasks

$$ d$.$ an appropriate metrics is developed for measuring the performance of the process$($es$),$ sub processes, activities, and tasks