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: Dental
Annular herald patch is seen in – 
Select and explain. 
A. Psoriasis, B. P. alba, C. P. rosea, D. Nocardiasis
C: P. rosea
Answer: C: P. rosea 
Explanation: Mother patch or Herald patch is characteristic of P. rosea.