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