An Agile team is facing problem in delivering the work on time. Team wants to know the bottleneck activity which is causing the delay. Team divides the overall work in progress into individual activities and plot them in cumulative flow diagram. How can the team identify the bottleneck activity?
a. Widening activity is the bottleneck activity
b. Activity above the widening activity is the bottleneck activity
c. Activity below the widening activity is the bottleneck activity
d. Cumulative Flow Diagram cannot determine bottleneck activity