74.3歲小男生走路搖搖擺擺，步態不穩，髖關節X光檢查如附圖，最可能的診斷為何？

(A)Legg-Calvé-Perthes disease
(B)slipped femoral capital epiphysis
(C)developmental dysplasia of the hip（DDH）
(D)osteochondrosis