Early X-ray signs in case of congenital femoral luxation are:
A. Late rentgenological manifestation of the ossification nucleus in femoral caput
B. Too early rentgenological manifestation of the ossification nucleus in femoral caput
C. Gradient of acetabular roof is smaller than 30°C
D. Caudal dislocation of femoral caput
Answer: A. Late rentgenological manifestation of the ossification nucleus in femoral caput