Given 4 processes PO to P3, and 3 resource types: A (7 instances), B (3 instances)and C (5 instances). Suppose a snapshot taken for the system at time To as follows: Allocation Max Available ABC ABC Po 200 4 1 2 111 P1 1 0 1 1 1 2 P2 3 1 1 431 P3 0 1 2 3 2 4 A- Apply Banker's algorithm to determine if the system is in a SAFE or UNSAFE state? Note: show all the changes made to the available resources (work). B- If the system is safe, what is the execution sequence of processes that avoids deadlock? [if unsafe, just write NONE] C- To avoid deadlock, can a request for resources (1,2,0) by P2 be granted? why