Which of these are objectives of Service Level Management
1: Defining, documenting and agreeing the level of IT Services to be provided
2: Monitoring, measuring and reporting the actual level of services provided
3: Monitoring and improving customer satisfaction
4: Identifying possible future markets that the Service Provider could operate in
A. 1, 2 and 3 only
B. 1 and 2 only
C. 1, 2 and 4 only
D. All of the above