This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Specific Cytogenetic Disorders, Subject name: Pathology
[{'content': "All of the following are true regarding Down's Syndrome EXCEPT; \nSelect and explain. \nA. Only found in female, B. Simian crease, C. Growth retardation, D. Epicanthus with oblique palpebral fissure", 'role': 'user'}, {'content': "Answer: A \nExplanation: Down's syndrome (Trisomy 21): Mental retardation Epicanthic folds and flat facial profile Simian's crease Umblical hernia Hypotonia Gap between first and second toe Congenital hea defects", 'role': 'assistant'}]