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
3 year old female child develops umblicated nodule over face, following a trivial infection. Probable diagnosis – 
Select and explain. 
A. Molluscum contagiosum, B. Scabies, C. Chicken pox, D. L. planus
A: Molluscum contagiosum
Answer: A: Molluscum contagiosum 
Explanation: Molluscum contagiosum → In children.
Sebaceous gland hyperplasia  → In adults.