The correct option is C Salivary gland
There are two main types of glands in our body - exocrine glands and endocrine glands. Exocrine glands are connected with the surface epithelium and secrete their products through ducts to the site of action. Sweat and salivary glands are examples of exocrine glands. Endocrine glands are ductless glands and secrete their hormones directly into the blood. Blood then transports the hormone to its site of action. Thyroid glands, adrenal glands and ovaries are examples of endocrine glands.