Match the following.
| Column-I | Column-II |
| (i) The smallest whole number is |
(p) 6 |
| (ii) The natural number that has no predecessor, is |
(q) 0 |
| (iii) When 2 is added 3 times, to the smallest whole number gives |
(r) 1 |
| (i) | (ii) | (iii) | |
| A | p | r | q |
| B | r | q | p |
| C | q | p | r |
| D | q | r | p |