<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 26-year-old woman comes to the emergency department because of a 3-day history of nausea and vomiting. Her last menstrual period was 9 weeks ago. A urine pregnancy test is positive. Ultrasonography shows an intrauterine pregnancy consistent in size with a 7-week gestation. The hormone that was measured in this patients urine to detect the pregnancy is also directly responsible for which of the following processes?? A: Maintenance of the corpus luteum, B: Inhibition of ovulation, C: Development of breast tissue, D: Inhibition of preterm uterine contractions, E: Preparation of the uterine endometrium for implantation,  <response>: This is a medical question asking about the hormone detected in a urine pregnancy test and what physiological process it is responsible for. The stem provides details about a 26-year-old pregnant woman who is 7 weeks gestant based on ultrasound. A urine pregnancy test detects the hormone human chorionic gonadotropin hCG. hCG is produced by the placenta and helps maintain the corpus luteum. The corpus luteum produces progesterone to support early pregnancy. Therefore, the hormone detected in the urine pregnancy test hCG is directly responsible for maintenance of the corpus luteum.A: Maintenance of the corpus luteum 