Answer:
d. It highlights uncertainty in project duration
Step-by-step explanation:
The acronym PERT stands for Program Evaluation and Review Technique. It is method that is used to determine the tasks or activities that are scheduled and examines how much time is required to complete each activity. It is used in project management to determines the minimum time required to complete the whole project.
Despite its highly usage in determining the time required to complete a project, it provides several limitations to its practical use. Like it can provide correct information about the accuracy of one element of any three estimates. It also does not provide the information when exactly a third scheduled task can begin before the accomplishing the two ongoing activities.
Thus the correct answer is--
d. It highlights uncertainty in project duration