input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A transvaginal ultrasound shows an intrauterine heteroechoic mass with numerous anechoic spaces and no identifiable fetus or amniotic fluid. Both the ovaries are enlarged and have multiple thin-walled, septated cysts with clear content. Which of the following is the most likely cause of the ovarian findings?   (A) Chocolate cysts   (B) Corpus luteum cysts   (C) Yolk sac tumor   (D) Theca leutein cysts
output: ['(D) Theca leutein cysts <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Chocolate cysts  (B) Corpus luteum cysts  (C) Yolk sac tumor  (D) Theca leutein cysts <> possible answers', '  A transvaginal ultrasound shows an intrauterine heteroechoic mass with numerous anechoic spaces and no identifiable fetus or amniotic fluid. Both the ovaries are enlarged and have multiple thin-walled, septated cysts with clear content. Which of the following is the most likely cause of the ovarian findings? <> context']