Answer:
D. Companies are wise to implement practices that support their employees sense of intrinsic motivation.
Step-by-step explanation:
According to the given excerpt, the central idea is that companies are wise to implement practises which would support the employee's sense of intrinsic motivation.
Based on the excerpt, it is suggested that it is unwise to tie every achievement in the workplace to an extrinsic reward as it is not only expensive, but would make the employee lazy when he is not given such reward.
However, it would be wiser for companies to implement practises that support their employees sense of intrinsic motivation.