What would get printed in the following code which contains POSIX standard notation with prefix "p"? void main() {pthread_t thread;/*define Posix thread*/pthread_create(&thread, NULL, &helper, NULL); printf("Hello World! 2 "); exit(0);} void *helper(void* arg) {printf("Hello World! 1 "); pthread_exit(0);} b. How can we modify the code above to always print out "Hello World! 1" followed by "Hello World! 2