A nurse is prepаring tо аuscultаte fetal heart tоnes fоr a client who is pregnant. Using Leopold maneuvers, the nurse palpates a round, firm, smooth part in the fundal portion of the uterus and a long, smooth surface on the mother’s right side, a small round soften part in the pelvic area. In which of the following maternal quadrants should the nurse auscultate fetal heart tones?