Answer:
A. Derrick must counsel Jack to help him understand the factors that are affecting his motivation.
Step-by-step explanation:
The reason is that the doing similar task over and over again demotivates the employees and as a result we see decline in the productivity of the employee. This means the manager must tailor the fixed benefits that the salesperson is generating from his job to performance based to increase the productivity of the employees. Furthermore, this can also be understood by counseling Jack and acknowledging the situation and key factors that demotivated him. The manager must then resolve the employee's issues.