Question $3(1$ point$)$

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Consider a system with ten resources and four processes competing for them. Let process P$1$ have a maximum need of seven resources, process P$2$ have a maximum need of five resources, process P$3$ have a maximum need of eight resources and process P$4$ have a maximum need of six resources.

Let $[$a$1,$ a$2,$ a$3,$ a$4]$ represent the allocation vector with respect to the resources currently allocated to the processes P$1$ through P$4,$ in that order. The system is deemed to be in a safe state with respect to an allocation vector if there is a possibility of allocating the remaining resources in such a way as to satisfy the maximum needs of all the processes.

Examine each of the following allocation vectors and determine if it is safe or not. Identify the one that is NOT safe?

Question $3$ options:

$[3,2,0,2]$

$[2,3,2,0]$

$[4,1,1,1]$

$[3,0,3,1]$