More than fifty years after Second World War, a number of African American were awarded --- some of them posthumously ---with the Congress Medal of Honor, which was nation's highest military award, and which was long overdue in recognition of their outstanding bravery.
A.with the Congress Medal of Honor, which was nation's highest military award, and which was long overdue in
B.with the Congress Medal of Honor, nation's highest military award for long-overdue
C.the Congress Medal of Honor, which was nation's highest military award, long-overdue in
D.the Congress Medal of Honor, nation's highest military award for long-overdue
E.the Congress Medal of Honor, nation's highest military award, in long-overdue
answer:C
我想請教一下,D哪裡不好,另外C是long overdue in是怎樣回事??
甘謝...