15.(5 points) Name the states a process ales a process can exist in at any given point in time. 16. (4 points) In a zero-capacity buffer: A) the queue has a maximum length of 1 B) the sender must block until the recipient receives a message C) the link can have messages waiting within it D) both A and C 17.(4 points) The short term scheduler selects from among the processes that are ready to execute and allocates the CPU to one of them, whereas, the long term scheduler selects processes from a pool and loads them into memory (ready state) for execution. A) True B) False 18. (4 points) A process is independent if it cannot affect or be affected by the other processes executing in the system. A process is cooperating if it can affect or be affected by the other processes executing in the system. A) True B) False