This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Upper limb, Subject name: Anatomy
The number of laticiferous ducts that open into the nipple is 
Select and explain. 
A. 0-5, B. 15-20, C. 35-50, D. 50-75
B: 15-20
Answer: B: 15-20 
Explanation: Breast is a compound tubulo-alveolar gland which secretes milk. The gland consists of 15 to 20 lobes. Each lobe is a cluster of alveoli, and is drained by a lactiferous duct. The lactiferous ducts converge towards the nipple and open on it. Near its termination each duct has a dilatation called a lactiferous sinus. Ref - BDC Vol1 6th edition pg 34