This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Physiology
Which one of the following cell types are found in the least numbers in the pituitary? 
Select and explain. 
A. Lactotrophs, B. Thyrotrophs, C. Gonadotrophs, D. Coicotrophs
B: Thyrotrophs
Answer: B: Thyrotrophs 
Explanation: Lactotroph-Prolactin cell (also known as epsilon acidophil, lactotrope, lactotrophic cell, lactotroph, mammatroph, mammotroph) is a cell in the anterior pituitary which produces prolactin Thyrotropes (also called thyrotrophs) are endocrine cells in the anterior pituitary which produce thyroid stimulating hormone (TSH) in response to thyrotropin-releasing hormone (TRH).Gonadotropes are endocrine cells in the anterior pituitary that produce the gonadotropins, such as the follicle-stimulating hormone (FSH) and luteinizing hormone (LH).Coicotropes (or coicotrophs) are basophilic cells in the anterior pituitary that produce melanocyte-stimulating hormone, adrenocoicotropic hormone (ACTH) and lipotropin.Ref: Ganong&;s review of medical physiology; 24th edition; page no:-325