Consider the following C program:#includevoid fun1 (char *s1, char *s2) { char *tmp ; tmp = s1 ; s1 = s2 ; s2 = tmp ;}void fun2 (char **s1, char **s2) { char *tmp ; tmp = * s1 ; * s1 = * s2 ; * s2 = tmp ;}int main ( ) { char *str1 = “Hi”, *str2 = “Bye” ; fun1 (str1, str2) ; printf (“%s %s “, str1, str2) ; fun2 (&str1, &str2) ; printf (“%s %s “, str1, str2) ; return 0 ;}The output of the program above is

• A. Hi Bye Bye Hi
• B. Hi Bye Hi Bye
• C. Bye Hi Hi Bye
• D. Bye Hi Bye Hi