To solve this problem, we need to match the structures listed in Column I with their respective locations in organs listed in Column II. Let's analyze each structure:$\newline \bullet\$Crypts of Lieberkuhn:$\newline$These are glandular structures located in the lining of the small intestine.$\newline$They are involved in the secretion of intestinal juices.$\newline$This matches with (iii) Small intestine.$\newline \bullet\$Glisson's Capsule:$\newline$This is a fibrous layer that surrounds the liver.$\newline$It provides structural support and protection to the liver.$\newline$This matches with (iv) Liver.$\newline \bullet\$Islets of Langerhans:$\newline$These are clusters of cells in the pancreas.$\newline$ They are responsible for the production of insulin and other hormones.$\newline$This matches with (i) Pancreas.$\newline \bullet\$Brunner's Glands:$\newline$These are glands located in the submucosa of the duodenum.$\newline$They secrete an alkaline mucus that protects the duodenal lining.$\newline$This matches with (ii) Duodenum.$\newline\newline$Now, let's match the items from Column I with Column II:$\newline a \rightarrow iii \newline b \rightarrow iv \newline c \rightarrow i \newline d \rightarrow ii \newline \newline\textbf{This corresponds to Option 3}.$