Practice question

Correct option is B, Protection and limited secretion. In Tissue-I, the accurate description is Protection and limited secretion, and that is what you should commit to memory. Keep the definition tight and the role clear — the functional job described in the stem is exactly what Protection and limited secretion does in Tissue-I. Then Protection and limited secretion is the answer you can defend. Check yourself by covering the options and writing the answer first, then matching the letter — that builds confidence. If the wording feels dense, translate it into everyday language first, then map that plain sentence back onto Protection and limited secretion.