Match the type of immunity with its description.
| Column I | Column II |
|---|---|
| (a) Innate immunity | (i) Based on memory, acquired after an infection |
| (b) Acquired immunity | (ii) Ready-made antibodies are given directly |
| (c) Active immunity | (iii) Non-specific type of defense, present at the time of birth |
| (d) Passive immunity | (iv) Host produces antibodies in response to infection or vaccination |