In Managing Subordinates Under an Incentive Pay Plan, a Manager

In managing subordinates under an incentive pay plan, a manager should

A) regularly communicate with subordinates about the plan.
B) set goals with subordinates, but then leave them alone to pursue those goals.
C) change the plan frequently to continue to motivate subordinates.
D) set "stretch" goals that are very difficult (perhaps impossible) to achieve.
E) design complex plans that cover all contingencies.