This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
[{'content': 'Molluscum contagiosum is a ________: \nSelect and explain. \nA. Adenovirus, B. Flavi virus, C. Rubi virus, D. Pox virus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ref: Textbook of Microbiology by Surinder Kumar, P 534* Molluscum contagiosum virus is a pox virus, which causes a contagious, benign epidermal tumor that occurs in humans only.* Lesion: small, pink, papular, warty, pearl-like benign tumors of the face, arm, back and buttocks.Poxviruses causing disease in humansGenusVirusPrimary hostDiseaseOrthopoxvirusVariolaHumansSmallpox (now eliminated)VacciniaHumansLocalized lesion; used for smallpox vaccinationBuffalopoxWater buffaloHuman infections rate; localized lesionMonkeypoxRodents, monkeysHuman infections rate; generalized diseaseCowpoxCowsHuman infections rare; localized ulcerating lesionParapoxvirusOrfSheepHuman infections rare; localized lesionPseudocowpoxCows Bovine popular stomatitisCows MollusapoxvirusMolluscum contagiosumHumansMany benign skin nodulesYatapoxvirusTanapoxMonkeysHuman infections rare; localized lesionYabapoxMonkeysHuman infections very rare and accidental; localized skin tumors', 'role': 'assistant'}]