The correct option is C Pancreas
Pancreas is considered to be both duct gland (exocrine) and the ductless gland (endocrine). Its exocrine part secretes the pancreatic juice which helps in the digestion of food. The secretion is released into the duodenum through a duct. On the other hand, its endocrine part includes the Islets of Langerhans with alpha and beta calls. These secrete the hormones glucagon and insulin which are transported through the blood.