Which statement is correct about the following petri net:

Process a Process b PI 16 14 P2 P1 P5 12 15 P3 18 13 16 Deadlock is not possible Deadlock is possible. One possible series of markings and transitions that lead to the deadlock is: M0(1,0,0,1,1,1,0,0)->T1->M1(0,1,0,0,1,1,0,0)->T4->M2(0,1,0,0,0,0,1,0) Deadlock is possible. One possible series of markings and transitions that lead to the deadlock is: M0(1,0,0,1,1,1,0,0)->T4->M1(1,0,0,1,0,0,1,0)->T1->M2(0,1,0,0,0,0,1,0) Deadlock is possible. One possible series of markings and transitions that lead to the deadlock is: M0(1,0,0,1,1,1,0,0)->T4->M1(1,0,0,1,1,1,1,0)->T1->M2(0,1,0,0,0,0,1,0) B and C