A six months old girl is having recurrent UTI.Ultrasound abdomen shows bilateral hydronephrosis.MCU(Micturating cysto urethrogram)shows bilateral Grad IV vesicoureteral reflux.The treatment of choice is:

• A. Ureteric re-implantation
• B. Endoscopic injection of polyteflon at te ureteric orifices
• C. Prophylactic antibiotics
• D. Bilateral Ureterostomy