<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 16-year-old boy comes to the physician because of painless enlargement of his left testis for the past 2 weeks. The patient reports that the enlargement is worse in the evenings, especially after playing soccer. He has not had any trauma to the testes. There is no personal or family history of serious illness. Vital signs are within normal limits. Examination shows multiple cord-like structures above the left testes. The findings are more prominent while standing. The cord-like structures disappear in the supine position. The testes are normal on palpation. The patient is at greatest risk of developing which of the following complications?? A: Bowel strangulation, B: Testicular torsion, C: Testicular tumor, D: Infertility, E: Erectile dysfunction,  <response>: This is a clinical case about a 16-year-old boy with painless enlargement of his left testis over the past 2 weeks. The enlargement is worse in the evenings and after playing soccer. There is no history of trauma, serious illness, or family history. On exam, he has multiple cord-like structures above the left testis that are more prominent when standing and disappear when supine. The testes are normal on palpation. Based on the clinical history and physical exam findings, this patient likely has varicocele, which is enlarged veins above the testis. The enlargement getting worse with standing and after physical activity along with the cord-like structures disappearing when supine are classic exam findings for varicocele. The key complication of varicocele is infertility. The cord-like dilated veins can cause higher temperature around the testis and impaired blood flow, which can damage sperm production and lead to infertility. The other answer choices are not potential complications of varicocele.D: Infertility 