MCQ
Match the following columns
| Column $-I$ | Column $-II$ |
| $(A)$ Physical barriers | $(1)$ Interferon |
| $(B)$ Physiological barriers | $(2)$ Leukocytes |
| $(C)$ Cellular barriers | $(3)$ Tears |
| $(D)$ Cytokinin barriers | $(4)$ skin |
$A$ $B$ $C$ $D$
- A$3$ $2$ $1$ $4$
- B$2$ $1$ $4$ $3$
- C$1$ $4$ $3$ $2$
- ✓$4$ $3$ $2$ $1$