According to Self-Determination Theory, What Would Be the Most Effective

According to self-determination theory, what would be the most effective way of creating autonomous motivation and improving performance?

A) Create tasks and jobs that are outside of the employees' skills and interests to motivate them to do something different.
B) Conduct job redesign to provide meaningful and interesting work.
C) Provide clear external rewards (e.g., pay raise) .
D) Focus the employee's attention on a specific task, so you don't overwhelm them with too much information on the end product.