This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin lesions, Subject name: Dental
Discoid lesion seen in: 
Select and explain. 
A. Prelymphomatous eruption, B. Pityriasis versicolor, C. Tinea capitis, D. Lichen nitidus
A: Prelymphomatous eruption
Answer: A: Prelymphomatous eruption 
Explanation: Discoid lesion is seen in Prelymphomatous eruption Macules - Pityriasis Versicolor Erythematous papules - Tinea capitis Flat topped micropapules -Lichen Nitidus