<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A healthy 33-year-old gravida 1, para 0, at 15 weeks gestation comes to the genetic counselor for a follow-up visit. Her uncle had recurrent pulmonary infections, chronic diarrhea, and infertility, and died at the age of 28 years. She does not smoke or drink alcohol. The results of an amniotic karyotype analysis show a deletion of Phe508 on chromosome 7. This patients fetus is at greatest risk for developing which of the following complications?? A: Duodenal atresia, B: Congenital megacolon, C: Cardiac defects, D: Meconium ileus, E: Neural tube defects,  <response>: This is a question about genetic counseling and identifying complications associated with a specific genetic mutation. The key details are that the patient is pregnant and her uncle had symptoms suggestive of cystic fibrosis recurrent lung infections, diarrhea, infertility and died young. Karyotype analysis of the fetus showed a deletion of Phe508 on chromosome 7, which is the most common mutation causing cystic fibrosis. Therefore, the fetus is at high risk for complications of cystic fibrosis. Meconium ileus is a complication specific to cystic fibrosis and involves intestinal obstruction due to very viscous meconium. The other answer choices are not directly associated with cystic fibrosis.D: Meconium ileus 