All Five Members of a Project Team Add 20% to Their

Multiple Choice

All five members of a project team add 20% to their individual serial activities as a safety margin and submit their time estimates to the project manager.The manager adds the activity length estimates together and adds 20% for his personal safety margin.Then,anticipating a cut by top management,he adds another 20% to his final project estimate.Much to his surprise,top management cuts only 10% off his time estimate.How much of a cushion is now built into the project?

A) 62%
B) 74%
C) 56%
D) 42%