Which for loop has the same range of indexes of 'i' as used in for (i = 0; i < n; i++)?

Which for loop has the same range of indexes of 'i' as used in for (i = 0; i < n; i++)?

1. a) for (i= n; i>0; i--)
2. b) for (i=n-1; i>0; i--)
3. c) for (i = 0; i = 0; i--)
4. d) for (i=n-1; i>-1; i--)