<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 19-year-old male from rural West Virginia presents to his family medicine doctor to discuss why he is having trouble getting his wife pregnant. On exam, he is 6 feet 2 inches with a frail frame and broad hips for a male his size. He is noted to have mild gynecomastia, no facial hair, and small, underdeveloped testes. He claims that although he has a lower libido than most of his friends, he does have unprotected sex with his wife. His past medical history is notable for developmental delay and difficulties in school. What is the most likely chromosomal abnormality in this patient?? A: Trisomy 13, B: Trisomy 21, C: 47: XYY, D: 47: XXY, E: 45: XO,  <response>: This is a question about identifying the most likely chromosomal abnormality in a 19-year-old male patient with signs of hypogonadism, infertility, developmental delay, and physical features suggestive of Klinefelter syndrome. The key findings are small, underdeveloped testes, mild gynecomastia, lack of facial hair, broad hips, low libido, and difficulties in school. These features are most consistent with Klinefelter syndrome, which is caused by an extra X chromosome in males 47,XXY. Trisomy 13 and 21 would not present this way. 47,XYY may cause tall stature but not the hypogonadism and infertility seen here. 45,XO Turner syndrome occurs in females, not males. Therefore, the most likely diagnosis is 47,XXY Klinefelter syndrome.D: 47: XXY 