A sectional view of the mammary gland shows (i) Nipple and Areola (ii) Mammary lobe Alveolus and Duct (iii) Antibodies Pectoralis major muscles and Ribs (iv) Ampulla and Lactiferous duct A. (i) (ii) and (iv) B. (i) (ii) and (iii) C. (iii) and (iv) D. (i) (ii) (iii) and (iv)