A young nulliparous woman has 3'd degree of uterovaginal prolapse without any cystocele or rectocele. There is no stress incontinence. The uterus is retroveed. Uterocervical length is 3 inches. All other symptoms are normal. The best treatment plan for her will be :
Observation and reassurance till child bearing is over Shirodkar's vaginal repair Shirodkar's abdominal sling Fothergill's operation