What type of control relies on information from completed activities?

A) Concurrent
B) Feedback
C) Feedforward
D) Administrative
E) Procedural

Feedback control relies on information from completed activities to make adjustments and corrections to current or future activities. Choice A, concurrent control, involves monitoring ongoing activities, while choice C, feedforward control, involves anticipating problems before they occur. Choices D and E, administrative and procedural control, respectively, refer to broader management functions and do not specifically rely on information from completed activities.