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: Unknown
Treatment options for acne vulgaris is/are - 
Select and explain. 
A. Dapsone, B. Oral Minocycline, C. Isotretinoin, D. All the above
D: All the above
Answer: D: All the above 
Explanation: Ans. is 'd' i.e., All the above Drugs used for the treatment of AcneTopicalComedolytics: Act by removing the follicular plug, thereby reopen pilosebaceous ostia. Comedolytics are; Retinoic acid, Adapalene, Azelaic acid, Tazarotene.Antibiotics: Decrease bacterial population and have an anti-inflammatory effect. Topical antibiotics for acne are; Erythromycin, clindamycin, Benzoyl peroxide:SystemicAntibiotics: Decrease bacterial population and have an anti-inflammatory effect. Systemic antibiotics for Acne vulgaris are; Tetracycline, minocycline, doxvcycline, Erythromycin, Roxithromycin, Cotrimoxazole, Dapsone.Retinoids :- Removes follicular obstruction, and also suppresses sebum secretion (Sebostatic).Antiandrogens: Decrease sebum secretion by decreasing androgens. Examples; Cyproterone, Ethinylestradiol, Spironolactone. Cyproterone acetate (along with efh inylestranol) is particularly useful in teenage girls with mensural irregularities.