Ans. (d) This condition is associated with APC gene of chromosome 4.Features of familial adenomatous polyposis* Autosomal dominant inherited disease due to mutation of the APC gene on the short arm of chromosome 5.* More than 100 colonic adenomas are diagnostic* Prophylactic surgery is indicated to prevent colorectal cancer* Polyps and malignant tumors can develop in the duodenum and small bowel* FAP can also be associated with benign mesodermal* Tumors such as desmoid tumors and osteomas. Epidermoid cysts can also occur (Gardner's syndrome)Image source- style="font-family: Times New Roman, Times, serif">