Given 4 processes Po to P3, and 3 resource types: A (Z 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 ABC Po 200 412 111 P1 101 112 P2 311 4 31 P3 012 3 24 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 Pa be granted? why