Which of the following statements are correct about the program? #include<stdio.h> char *fun(unsigned int num, int base); int main() { char *s; s=fun(128, 2); s=fun(128, 16); printf("%s n",s); return 0; } char *fun(unsigned int num, int base) { static char buff[33]; char *ptr = &buff[sizeof(buff)-1]; *ptr = ' 0'; do { *--ptr = "0123456789abcdef"[num %base]; num /=base; }while(num!=0); return ptr; }

• A. It converts a number to a given base.
• B. It converts a number to its equivalent binary.
• C. It converts a number to its equivalent hexadecimal.
• D. It converts a number to its equivalent octal.