First try to predict the outcome of the following C program. Then, run it to find out whether your prediction was correct or not. Try to justify your observation using the concept of pointers in C. Hint: Please note that: p is a pointer initialized to letter 'o' in the string "hello world!" str which is the name of char array containing the "hello world!" string is considered to be the pointer to the first letter 'h' expression (p - str) subtracts a pointer from the other resulting in an integer counting how many characters can be fit between these two pointers. p[-2] is a character stored two letters before the current position that pointer p refers to p-- moves the pointer p backward in the string "hello world!" ++p moves the pointer p forward in the string "hello world! #include int main(){ char str[15] = "hello world!"; char* p = &str[4]; printf("%d %d %c %c %c", p - str, p[-2] - 'a', p[3] - 4, *(p--), *(++p)); }