Can anyone help me with this question i try but was not sure Consider a uniprocessor system executing concurrently two processes P and Q. Each process executes the code listed below, process P – procedure P, and process Q – procedure Q. Both processes arrive within a very short time of each other, but no assumptions can be made about the time they start execution and their relative speed. All statements used in the code below from A to K are atomic ie. they either execute completely or not at all. The execution of the processes is synchronised by two binary semaphores S1 and S2. The semaphore S1 is initialised to 1, and the semaphore S2 is initialised to 0. The code executed by the processes is as follows: procedure P begin A; wait(S1); B; signal(S1); C; D; signal(S2); E; end procedure Q begin F; wait(S1); G; H; J; signal(S1); wait(S2); K; end a.Give at least four possible orders of execution for statements A to K. A,C,D,E,K A,D,C,E,K F,C,D,E,K F,D,C,E,K b. What is the function of each of the semaphores S1 and S2 in the given example? S1 – used for waiting c. Is it possible for statement E to execute before statement F? Justify your answer. Yes, (but i am not so sure, can someone confirm?) d. Is it possible for statement K to execute before statement A? Justify your answer.