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EasyRe-NEET 2026
+4 / -1
Which of the following are secondary lymphoid organs? (a) Bone marrow (b) Tonsils (c) Spleen (d) Thymu Choose the correct answer from the options given below.
A
(a) and (b) only
B
(b) and (c) only
C
(b) and (d) only
D
(a) and (d) only
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