Julia Is a New Mother Who Plans to Continue Lactation

Julia is a new mother who plans to continue lactation for at least a year after her baby is born.At a post-parturition doctor's visit,the doctor says her blood test indicates declining levels of estrogen and progesterone.Will this interfere with her plans to lactate? 

A) Yes,high levels of estrogen and progesterone are required for milk production.
B) Yes,high levels of estrogen and progesterone are required for milk ejection.
C) No,because the secretion of oxytocin and prolactin are more important for lactation.
D) No,because even in the absence of hormones,suckling at the breast is sufficient stimulus for milk production.