Consider the following three scenarios of the producer consumer problem with a shared buffer that stores a maximum of two elements. Assume that the problem of synchronization is solved using conditional variables. For the sake of fairness, assume that a consumer (respectively, producer) will only consume (respectively, produce) one element at a given time and will perform signaling once the element is consumed (respectively, produced). One sample signaling case is:

Example: P2 signals C1 when buffer is filled with an element

Now, for each of the three scenarios given below, considering various orderings of the execution of producer and consumer processes, list all possible signaling cases.

a) Two producers: P1, P2 and one consumer: C.

b) Two consumers: C1, C2 and one producer: P.

c) Two producers: P1, P2, and two consumers: C1, C2.

Please note. For this question, actual code or pseudo-code will not be given ANY credit whatsoever. Please read the question and the given example before attempting to answer