Forward-buying is purchasing extra inventory while it is on-deal so it can be sold later when it is off-deal

Ideally, in a goal programming model, all deviations should be zero, though that is often not the case because:

a. Goal programming models often have conflicting constraints. b. Goal programming models often have a single objective function. c. Goal programming models always have a single objective function. d. All of the above

_________ control determines the direction in which particular service requests may be initiated and allowed to flow through the firewall

A. Behavior B. User C. Direction D. Service