The group within an organization that is responsible for monitoring and evaluating the internal control system is called the

Audit committee

Explanation:

Internal control is a system of ensuring that an organization's policies and procedures are complied with by its staff in order to protect the company's assets, ensure fraud is eliminated and also ensure financial integrity.

The audit committee ensures that the system of internal control implemented by the management is effective, hence its able to manage the risk inherent in the organization. The committee is also responsible for monitoring and evaluating the system of internal control in an organization inorder to ensure its effectiveness.

decentralization can the employees to get more involved in the business decision making

i would say a penny hope it you