This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Anatomy
The presence of small sized platelets on the peripheral smear is characteristic of: 
Select and explain. 
A. Idiopathic thrombocytopenic purpura, B. Bernard soulier syndrome, C. Disseminated intravascular coagulation, D. Wiskott aldrich syndrome
D: Wiskott aldrich syndrome
Answer: D: Wiskott aldrich syndrome 
Explanation: Wiskott aldrich syndrome is characterised by the traid of: Severe exzema Thrombocytopenia Recurrent infections( ref Robbins 7th/244,8th/235)