A 13 year old young girl presents in the casualty with actue pain in the lower abdomen.She has history of cyclical pain for last 6 months and she has no attained her menarche yet.On local genital examination, a tense bulge in the region of hymen was seen.The most probable diagnosis is -

• A. Testicular feminization syndrome
• B. Rockytansky Kuster Hauser syndrome
• C. Asherman's syndrome
• D. Imperforate hymen