Which of the following statements given below is/are correct? I. Secondary lymphoid organs inclu...

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Which of the following statements given below is/are correct?
I. Secondary lymphoid organs includes lymph nodes, spleen and small masses of lymph tissue such as Peyer's patches, appendix and tonsils.
II. The secondary lymphoid organs provide the site for interaction of lymphocyte with the antigens.
(a) Only I
(b) Only II
(c) I and II
(d) None of these
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