Which of the following is a modification of the mucosa of the alimentary canal?

Match the names of glands listed under column $-I$ with the location given under column $-II$, choose the answer which gives correct combination of the alphabets of the two columns.

Column $-I$ (Glands)	Column $-II$ (Location)
$(A)$ Crypts of Lieberkuhn	$(p)$ Loop of duodenum
$(B)$ Pancreas	$(q)$ Stomach
$(C)$ Adrenal gland	$(r)$ Intestine
$(D)$ Gastric gland	$(s)$ Kidney

The Crypts of Lieberkühn contain which of the following?

The condition where teeth are embedded in a socket of the jaw bone is called:

Brunner's glands are found in the . . . . . . .

What is the correct labelling of the diagram given below? Choose the correct option accordingly.