Mutual Exclusion Implies That

Multiple Choice

Mutual exclusion implies that

A) if a process is executing in its critical section, then no other process must be executing in their critical sections
B) if a process is executing in its critical section, then other processes must be executing in their critical sections
C) if a process is executing in its critical section, then all the resources of the system must be blocked until it finishes execution
D) none of the mentioned