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: Skin
19 years old girl has multiple papulo pustular erythematous lesions on face and neck, the likely diagnosis is 
Select and explain. 
A. Acne rosacae, B. Acne Vulgaris, C. Pityriasis Versicolour, D. Lupus Vulgaris
B: Acne Vulgaris
Answer: B: Acne Vulgaris 
Explanation: B i.e. Acne Vulgaris