_____ waits occur when a worker requests access to a resource that is not available because the resource is being used by some other worker or is not yet available.

_____ waits occur when a worker requests access to a resource that is

1.	_____ waits occur when a worker requests access to a resource that is not available because the resource is being used by some other worker or is not yet available.
A.	Resource
B.	Queue
C.	Lock
D.	External
Answer» B. Queue