This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin lesions and disorders of pigmentation, Subject name: Dental
Target lesions are characteristic of 
Select and explain. 
A. Dermatitis herpetiformis, B. Sulpha drug reaction, C. Lichen planus, D. Erythema multiformae
D: Erythema multiformae
Answer: D: Erythema multiformae 
Explanation: Target lesions- Iris lesions: these are pathognomic of erythema multiforme. commonly found on the extremities especially hands. there are three zones of color change: 1. central dark or sometimes blistered area 2.surrounded by pale odematous zone 3.inturn rimmed by another zone of odema IADVL textbook of dermatology, principles of clinical diagnosis,page 106.