Q. Which one of the following is NOT a principal component of innate immunity?
(A) Mucosal epithelia
(B) Dendritic cells
(C) Complement system
(D) Memory B-cells
Ans: Memory B-cells
![Determine the correctness (or otherwise) of the following Assertion [A] and the Reason [R]](https://www.gkseries.com/blog/wp-content/uploads/2023/10/Determine-the-correctness-or-otherwise-of-the-following-Assertion-A-and-the-Reason-R.jpg)
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