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 of partner is required in all infection except: 
Select and explain. 
A. Candida, B. Herpes, C. Trichomonas, D. Gardnerella
D: Gardnerella
Answer: D: Gardnerella 
Explanation: Treatment of male partners with metronidazole does not prevent recurrence of bacterial vaginosis/gardenella associated with vaginal discharge.”
Treatment of sexual partners is required in :

Candidiasis
Herpes genitalis
Trichomoniasis