<prompt> The type of estrogen found in highest concentration in adult female is-EstroneEstriolEstradiolNone  <response>: Ans c EstradiolRef: Ganong, 25th edp.406Naturally occurring estrogens are,Estradiol E2 - predominant estrogen during reproductive yearsEstrone E1 - predominant estrogen in menopausal womenEstriol E3 - predominant estrogen in pregnant women 