In which one of the following options the two examples are correctly matched with their particular type of immunity?
| Examples | Type of immunity |
|---|---|
| (1) Saliva in mouth and tears in eyes | Physical barriers |
| (2) Mucus coating of epithelium lining the urogenital tract and HCl in stomach | Physiological barriers |
| (3) Polymorphonuclear leukocytes and monocytes | Cellular barriers |
| (4) Anti-tetanus and anti-snake bite injections | Active immunity |
Example (1)
Example (2)
Example (3)
Example (4)