The pancreas and salivary gland make amylase (alpha amylase) hydrolyze dietary starch into disaccharides and trisaccharides, which are converted by other enzymes to glucose. Plants and some bacteria also produce amylase. Whereas thyroxin is secreted by the thyroid gland, Vasopressin is secreted by pituitary gland and secretin is secreted by the duodenum. Thus, the correct answer is option B.