Answer:
C. the less productive the process is.
Step-by-step explanation:
Variability refers to the property when the given substance are highly probable to change and that the results accordingly change.
In that condition there is no drawn pattern for such change, as it might or might not change according to the expected scale and level.
In this, if there is high variability, then the results can be that the resulting process will be least productive, as there are so many uncontrollable changes.
Accordingly, since no proper management of the related process is possible, the results will not be productive.