Which one of the following statements is correct?
Gang process chart?
(a) Helps us in identifying the group leader
(b) Is used for studying the activities of a group of people working together
(c) Has the basic purpose to analyze the activities of a group so as to reduce to minimum all waiting time and delays
(d) Uses operation and transpiration symbols to identify different activities of people working together so as, to reduce to a minimum all non – operational times