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: Skin
Limpet-like cone-shaped lesions in psoriasis refers to: 
Select and explain. 
A. Rupioid psoriasis, B. Elephantine psoriasis, C. Ostraceous psoriasis, D. Inverse psoriasis
A: Rupioid psoriasis
Answer: A: Rupioid psoriasis 
Explanation: Rupioid psoriasis refers to limpet-like cone-shaped lesions. The term elephantine psoriasis is used to describe persistent, thickly scaling, large plaques. Ostraceous psoriasis refers to a ring-like hyperkeratotic lesion with a concave surface, resembling an oyster shell. Ref: Rook's textbook of dermatology, 8th edition, Pg 20.12