<prompt> Gynecomastia in neonate is seen due to:Mothers estrogenMothers progesteroneGnRHGonadotropins  <response>: a. Mothers estrogenRef: Nelson 20e p 2742Transient gynecomastia occurs in 60-90 of male newborns secondary to exposure to estrogens during pregnancy.Breast development may be asymmetrical and galactorrhea is seen in 5.Most cases resolve within 4-8 wk of birth, but a few can last as long as 12 mo. 