(A) is the right answer.
Pelvic girdle consists of two coxal bones. Each coxal bone is formed by the fusion of three bones – ilium, ischium and pubis. At the point of fusion of the above bones is a cavity called acetabulum to which the thigh bone (femur) articulates. The two halves of the pelvic girdle meet ventrally to form the pubic symphysis containing fibrous cartilage.