Two processes (7 and 8) are currently on RL. Process 8 is at the head of the list and is running. The next field of process 8 points to process 7, which is ready. Process 7 is currently holding two resources (15 and 25). The other_resources field of process 7 points to resource 15, which in turn points to the next resource, 25. PCBs 7 8 RL running process_state other_resources next ready 15 8 7 RCBs 15 25 allocated allocated state waiting list next 25 (a) Show all changes to the data structures after process 8 requests resource 15. (b) Show all changes to the data structures after process 7 releases resource 15. Assume that processes are entered into RL at the end of the list. Two processes (7 and 8) are currently on RL. Process 8 is at the head of the list and is running. The next field of process 8 points to process 7, which is ready. Process 7 is currently holding two resources (15 and 25). The other_resources field of process 7 points to resource 15, which in turn points to the next resource, 25. PCBs 7 8 RL running process_state other_resources next ready 15 8 7 RCBs 15 25 allocated allocated state waiting list next 25 (a) Show all changes to the data structures after process 8 requests resource 15. (b) Show all changes to the data structures after process 7 releases resource 15. Assume that processes are entered into RL at the end of the list