<prompt> All the following hormones are secreted by placenta except:hCGTRHACTHInsulin  <response>: Protein hormones produced by human placentaHuman chorionic gonadotropinPlacental lactogenACTHGnRHThyrotropin Growth hormone releasing hormoneGrowth hormone variantNeuropeptide YParathyroid hormone releasing proteinInhibinActivinRelaxinRef: Williams Obstetrics; 25th edition 