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 following statements about Fanconi's anaemia are true except-a) Progressive pancytopeniab) Simultanagnosiac) Visual object agnosiad) Increased chromosomal fragilitye) Associated skeltal abnormalities involving thumb and radius 
Select and explain. 
A. a, B. c, C. ac, D. bc
D: bc
Answer: D: bc 
Explanation: None