Consider a project that has exactly one and only one critical path? Which of the following statements is certain to be true of this critical path?
a. Reducing the duration of any activity on this path by one day will reduce the duration of the project by one day.
b. Reducing the duration of any activity on this path by six days will reduce the duration of the project by two days.
c. For some, but not all, activities on this path, reducing the duration by a day will result in a reduction in the duration of the project by a day (i.e., for some of the activities on this path, reducing them by a day won't reduce the project by a day.)
d. All of the these answers will always be true.
e. None of these answers will always be true.