$5$:$05)$ Select the correct statements regarding mutex lock to prevent race condition.

$1.$ a process must acquire the lock before entering a critical section

II$.$ a prOcess need not acquire the lock before entering a critical section

III. it releases the lock when it exits the critical section

IV$.$ a process must acquire the lock when it exits the critical section

C$)$ IlIl and IV

A$)$ l and IlI

B$)$ Il and IV

$5\mathrm{.}6)$ A deadlock situation in process synchronization arises when:

A$)$ TWo processes compete for the same resource.

B$)$ TWo or more processes wait indefinitely for resources held by each other.

C$)$ A process is preempted by the operating system.

D$)$ A memory access violation Occurs.

$5\mathrm{.}17)$ In non$-$preemptive approach, the kernel is

A$)$ Free from race condition

C$)$ Could allow process execution in parallelism fashion

D$)$ I and IV

B$)$ Could have race condition

D$)$ None of the above