Q100. Mr. F calculates the total activity time, but the calculated time is longer than initially expected. His superior therefore instructs him to consider a method for reducing the time. Which of the following is the appropriate method that most reduces the total activity time listed in the table? Here, the activities that can be performed concurrently are all performed in parallel and simultaneously.
a) Reducing the time of activity 2 by 1.5 hours
b) Reducing the time of activity 4 by 1.5 hours
c) Reducing the time of activity 5 by 1.5 hours
d) Reducing the time of activity 6 by 2.0 hours