This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
The disorders characterized by craniosynostosis, craniofacial anomalies, severe symmetrical syndactyl (cutaneous and bony fusion) of the hands and feets along with preracial polysyndactyly and variable soft firm syndactyly is: 
Select and explain. 
A. Carpenter syndrome, B. Crouzen syndrome, C. Apert syndrome, D. Down's syndrome
A: Carpenter syndrome
Answer: A: Carpenter syndrome 
Explanation: None