To solve this problem, we need to match the hormones in List I with their corresponding target organs or effects in List II. Let's analyze each hormone:$\newline \bullet$A. CCK (Cholecystokinin):$\newline$ - CCK is a hormone released by the small intestine in response to the presence of fats.$\newline$ - It stimulates the pancreas to release digestive enzymes and the gallbladder to release bile.$\newline$ - This matches with IV. Pancreas.$\newline \bullet$B. GIP (Gastric Inhibitory Peptide):$\newline$ - GIP is a hormone that inhibits gastric motility and secretion.$\newline$ - It is released in response to glucose and fatty acids in the small intestine.$\newline$ - This matches with III. Gastric gland.$\newline \bullet$C. ANF (Atrial Natriuretic Factor):$\newline$ - ANF is a hormone produced by the heart's atria.$\newline$ - It reduces blood volume and pressure by promoting sodium excretion in the kidneys.$\newline$ - This matches with II. Heart.$\newline \bullet$D. ADH (Antidiuretic Hormone):$\newline$ - ADH is a hormone that promotes water reabsorption in the kidneys, reducing urine output.$\newline$ - This matches with I. Kidney.$\newline$Now, let's match the items from List I with List II:$\newline A \rightarrow IV, B \rightarrow III, C \rightarrow II, D \rightarrow I \newline$This corresponds to Option 1.