Answer:
D. By supplying incentives so the agents act in the way principal desires.
Step-by-step explanation:
To solve this issue, owner should have to reduce the impact to the principal originated by an agent. First step is to identify the agents involved in the particular quality issue, so determine accurately the source of defects. Then, create a new incentive policy where payment dock is high ( or bonus less ) for workers involved, and lower for the rest of the team ( principal ) ( or bonus high ) .
In this way, agents will try to avoid defects as they will consider themself as main affected part.