Answer:
Montgomery's tubercles are skin that visible, of the sebaceous glands that are located in the areola.
Explanation:
Montgomery glands or sebaceous glands are present in the areola of the breast, areola surrounds the nipple. It is the pigmented skin that darkens the skin around the nipple. During pregnancy or milk production these glands swell up or enlarge. The Montgomery glands are not swells normally and the only characterization of pregnancy or breastfeeding.
When these glands are the swells up the skin of these glands are visible and known as Montgomery's tubercles
Thus, the correct answer is Montgomery's tubercles are skin that visible, of the sebaceous glands that are located in the areola.