MCQ
Standing state of the ecosystem is
- ALiving and non-living components
- BOnly living components
- ✓Total weight of non-living components
- DNone of the above
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Statement $I$ : Bone marrow is the main lymphoid organ where all blood cells including lymphocytes are produced.
Statement $II$ : Both bone marrow and thymus provide micro environments for the development and maturation of T-lymphocytes.
In the light of above statements, choose the most appropriate answer from the options given below :

| Column $-I$ (Production Process) | Column $-II$ (Beverages) |
| $(A)$ Without distillation | $(1)$ Wine |
| $(B)$ By distillation | $(2)$ Beer |
| $(3)$ Whisky | |
| $(4)$ Brandy | |
| $(5)$ Rum |
$A$ $B$