Concept:A gland that has both duct (exocrine) and ductless (endocrine) functions is called a mixed gland.Explanation:The pancreas is a mixed gland.It acts as an exocrine gland by secreting pancreatic juice through ducts into the small intestine.It also acts as an endocrine gland by releasing insulin and glucagon directly into the blood.The ovary, adrenal, and thyroid are primarily endocrine glands without ducts.Answer:B. Pancreas