<prompt> The minimum age of the given x-ray is:12 years14 years16 years18 years  <response>: Ans. D. 18 yearsIn the given x-rayThe ossification centre for iliac crest ischial tuberosity has appeared.The head of femur, great trochanter lesser trochanter has fused with the shaft of femur.Iliac crest centre has not fused. 