Final answer:
Positive feedback in a systems theory context amplifies changes within a system. The significant decrease in unsold inventory at the car dealership over the past few months is the best example of positive feedback, indicating strong sales and successful business operations.
Step-by-step explanation:
The question asks which of the following options would be considered positive feedback from a systems theory perspective to a local car dealer. In systems theory, positive feedback refers to a process that increases or amplifies the changes or output within a system. Therefore, the option that indicates an improvement or success within the car dealership's operations would be considered positive feedback.
Out of the given options, the best example of positive feedback would be D: finding that the inventory of unsold cars has decreased significantly over the last few months. This is because a decrease in unsold inventory typically indicates that sales have been strong, suggesting a healthy demand for the cars and successful business operations. It represents a positive outcome that is likely to encourage similar strategies in the future.