Question

the joint between the two coxal bones is called
answer
the pubic symphysis
the sacroiliac joint
the pelvic joint
the acetabulum
i dont know yet

Explanation:

The pubic symphysis is the joint between the two coxal (hip - bone) bones. The sacroiliac joint is between the sacrum and ilium. There is no "pelvic joint" as a standard anatomical term for the joint between coxal bones. The acetabulum is the socket for the femoral head.

Answer:

the pubic symphysis