Given two processes running concurrently. Below is their pseudo$-$code:

Where Si's are N binary semaphores that will be initialized to $1.N$ is a natural number greater than $2.$

Choose the correct statement:

a$.$ Two processes can reside simultaneously in a critical section.

b$.$ Two processes may enter a deadlock.

c$.$ The protocol guarantees precedence of $0$ Process over the competing process.

d$.$ The protocol guarantees precedence of $1$ Process over the competing process.

e$.$ The protocol eliminates the critical section problem.