QUESTION 8 Two concurrent processes, P1 and P2, share two semaphores: S1 (initially open) and S2 (initially closed) Consider the following pseudocode fragments: P1 P2: print In P2" print (In P1") P(S1) print ('Hello, world!") V(S2) P(S2) print ("Foobar") V(S1) Which of the following combined outputs of P1 and P2 is possible? In P2 Foobar P1 Hello, world! In P1 In P2 After this, both processes deadlock. In P1 In P2 Foobar Hello, world! In P2 In P1 Hello, world! Foobar