$(4$ points$)$ The advantage$($s$)$ of a traditional project delivery method is $($are$)$:

a$.$ Reduced project time

b$.$ No adversarial relationships among participants

c$.$ Shared risks and rewards among key players

d$.$ Known project cost before construction

$($e$.)$ All of the above

$4$ points$)$ Which of the following statements is NOT correct?

a$.$ It is acceptable to use a single node to represent multiple activities.

b$.$ A forward pass is used to determine the early start and early finish times.

c$.$ Certain key events are called milestones.

d$.$ The longest sequence of activities required to complete the project is known as the critical path.

e$.$ Bar chart schedules are less effective than network schedules in depicting relationships between activities.