Question

Match List I (Immune Organs) with List II (Functions):

• A. A-IV, B-III, C-I, D-II
• B. A-III, B-I, C-II, D-IV
• C. A-III, B-II, C-I, D-IV
• D. A-IV, B-I, C-II, D-III

Hint:

Bone = Birth (of cells); Spleen = Blood filter; Thymus = Thins with age.

Answer 1

The Correct Option is D

Step 1--3: Analysis
Bone marrow = haematopoiesis (A-IV). Spleen = filters blood-borne antigens (B-I). Lymph nodes = filters tissue-associated antigens (C-II). Thymus involutes with age (D-III).

Step 4: Conclusion
The correct match is A-IV, B-I, C-II, D-III.

Final Answer: (D)