C++ Pointers & Functions Interview Question:

What is the output of this program?

#include <iostream>
using namespace std;
int main()
{
int a[2][4] = {3, 6, 9, 12, 15, 18, 21, 24};
cout << *(a[1] + 2) << *(*(a + 1) + 2) << 2[1[a]];
return 0;
}
a) 15 18 21
b) 21 21 21
c) 24 24 24
d) Compile time error