Match column I with column II, and choose the correct combination from the options given below.
Column I | Column II | ||
a | Cellular barrier | 1 | Natural killer |
b | Physiological barrier | 2 | Interferons |
c | Cytokine barrier | 3 | Skin |
d | Physical barrier | 4 | Tears from eyes |
Column I | Column II | ||
a | Cellular barrier | 1 | Natural killer |
b | Physiological barrier | 4 | Tears from eyes |
c | Cytokine barrier | 2 | Interferons |
d | Physical barrier | 3 | Skin |