Which system call in Unix is responsible for creating a new process?a.none of the mentionedb.forkc.created.new

The system call in Unix responsible for creating a new process is b. fork.

Here's a step-by-step explanation:

1. In Unix, when a new process needs to be created, the system call 'fork()' is used.

2. The 'fork()' system call creates a new process by duplicating the existing process from which it is called. The existing process is called the parent process, and the newly created process is called the child process.

3. After the 'fork()' system call, both the parent and child processes will have the same memory image, open files, etc. But these are separate entities and changes in one process do not affect the other.

4. The 'fork()' system call returns the process ID of the child process to the parent process, and 0 to the child process. If the 'fork()' system call fails, it returns -1.

5. Therefore, the correct answer is b. fork.