Milestone chart show
a. Scheduled start or completion of major deliverables and key external interfaces
b. Activity start and end dates of critical tasks
c. Expected durations of the critical path
d. Dependencies between complementary projects
Answer: a. Scheduled start or completion of major deliverables and key external interfaces
Milestone chart
Milestones are singular points in time, such as the start or completion of a significant activity or group of activities. [Planning]