The correct answer is: C. Pancreas.
A mixed gland is a gland that secretes both endocrine and exocrine hormones. The pancreas is a mixed gland that secretes digestive enzymes into the small intestine through the pancreatic duct, and hormones such as insulin and glucagon into the bloodstream.
The pituitary gland is an endocrine gland that secretes hormones that control many important body functions, including growth, metabolism, and reproduction. The adrenal glands are endocrine glands that sit on top of the kidneys. They secrete hormones that help the body respond to stress, regulate blood pressure, and produce sex hormones. The ovaries are female reproductive organs that produce eggs and hormones that regulate the menstrual cycle and female sexual characteristics.