Semaphore operation in sequence for producer processes in bounded buffer problem using semaphore empty, full, mutex 

(A) Signal (Full) → indicating that the new item has been produced and added to the buffer 

(B) Wait (Empty) → check if there is space in the buffer to add new item 

(C) Produce an item and store it in buffer 

(D) Wait (Mutex) → enter the critical section to insert the item safely 

(E) Signal (Mutex) → leaves the critical section after inserting the item 

(a) A, E, C, B, D 

(b) C, B, A, D, E 

(c) D, E, A, C, B 

(d) B, D, C, E, A