In lltest.c as given, when lltest is run with at least two command$-$line arguments not starting with $$Z$,($a$)$ Why is it that the change to argv$[1][0]$ is not reflected in the first execution of printList? $($b$)$ Why is it that the change to argv$[1][0]$ is reflected in the second execution of printList? $($c$)$ Why is it that the change to argv$[2][0]$ is reflected in the second execution of printList? HW$6-3(10$ points$)$ In lltest.c as given, there is a memory leak, i$.$e$.,$ some memory is allocated that is not freed by the program. $($a$)$ Explain where$/$why that is happening. $($b$)$ Give a suggestion of how to get the same program behavior in terms of output but without the memory leak.