This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Psoriasis, Subject name: Skin
Which of the following is most serious type of psoriasis is - 
Select and explain. 
A. Chronic plaque psoriasis, B. Generalized pustular psoriasis, C. Guttate psoriasis, D. Flexural psoriasis
B: Generalized pustular psoriasis
Answer: B: Generalized pustular psoriasis 
Explanation: Ans is 'b' i.e. Generalized pustular psoriasis o Erytherodermic and generalized pustular psoriasis (Von Zumbusch type) are can become dermatological emergencies. They are the most severe forms.o Chronic plaque psoriasis is the most common form (80%).