You have treated the simple and undisplaced fracture of shaft of right tibia in a nine year girl with above knee plaster cast.Parents want to know the prognosis of union of the fractured limb which was affected by poliomyelitis four years ago.What is the best possible advice will you offer to the parents?

• A. Fracture will unite slowly
• B. Fracture will not unite
• C. Fracture will unite normally
• D. Fracture will unite on attaining puberty