Pointer to Array Vs Array of Pointer in C

#include < stdio.h > 
#include < stdlib.h >

  int main() { // pointer to an array
    // here arr is the pointer which points to whole array
    char( * arr)[] = "hklpo"; // will emit warning. or some compilers may not support.
    printf("%c\n", ( * arr)[0]);
    // array of pointers
    // here str contains the pointers and itself is array
    // its index will point to specific element
    char * str[] = {
      "dafds",
      "DFdf"
    };
    printf("%s\n", str[1]);

    // how integers work
    // pointer to array of integers
    int arrInt[] = {
      1,
      2,
      3,
      4,
      5
    };
    int( * stra)[] = arrInt; // cannot directly give values like we did in char array.
    // Because strings are stored as array internally. But we can also assign char array as we did in integer array.
    printf("%d\n", ( * stra)[2]);

    // array of integer pointers
    int * arrIntt[] = {
      1,
      2,
      3,
      4,
      5
    };
    printf("%d\n", arrIntt[1]);

    // size of check
    // remember a pointer size if 8 bytes on a 64 bit machine and 4 bytes on 32 bit machine
    // because pointer stores the address
    printf("\nSize check : \nChar Pointer to Array: %d,\nArray of Char pointer: %d,\n\
Integer Pointer to Array: %d,\nArray of integer Pointers: %d\n\n", sizeof(arr), sizeof(str), sizeof(stra), sizeof(arrIntt));

    // see below for pointer size vs data type size
    char * a = 'a';
    printf("%d", sizeof(a)); // give 8 byte on 64 bit machine
    char b = 'b';
    printf("%d", sizeof(b)); // give 1 byte on most of machine (language dependent)
    return 0;
  }