Question
Question: Given figure refers the human lymphatic system. <img src="https://cdn.pureessence.tech/canvas_197.p...
Given figure refers the human lymphatic system.

A – lymph nodes (Primary Lymphoid organ), B – thymus (Pri. Lymphoid organ), C – spleen (Secondary lymphoid organ), D – bone marrow (Sec. Lymphoid organ)
A – lymph nodes (Primary Lymphoid organ), B – thymus (Secondary Lymphoid organ), C – spleen (Pri. Lymphoid organ), D – bone marrow (Pri. lymphoid organ)
A – lymph nodes (Secondary Lymphoid organ), B - thymus (Primary Lymphoid organ), C – spleen (Sec. Lymphoid organ), D – bone marrow (Pri. lymphoid organ)
A – lymph nodes (Primary Lymphoid organ), B – thymus (Secondary Lymphoid organ), C – spleen (Sec. lymphoid organ), D – bone marrow (Sec. Lymphoid organ)
A – lymph nodes (Secondary Lymphoid organ), B - thymus (Primary Lymphoid organ), C – spleen (Sec. Lymphoid organ), D – bone marrow (Pri. lymphoid organ)