The main doctrine of the Roman Catholic Church in the Kingdom of Yugoslavia was that ( a ) the clergy shall be paid by the state as the state officials ; ( b ) the state can not have any control over the Church ; ( c ) the Church has right to be fully involved in the political life of the Kingdom of Yugoslavia ; ( d ) the Church doctrine\/religious education shall be a part of primary and secondary school curricula ; and that ( e ) the Roman Catholic Church curricula in the schools shall be obligatory to all pupils whose at least one parent is a Roman Catholic . The main doctrine of the Roman Catholic Church in the Kingdom of Yugoslavia was that ( a ) the clergy shall be paid by the state as state officials ; ( b ) the state can not have any control over the Church ; ( c ) the Church has right to be fully involved in the political life of the Kingdom of Yugoslavia ; ( d ) the Church doctrine\/religious education shall be a part of primary and secondary school curricula ; and that ( e ) the Roman Catholic Church curricula in the schools shall be obligatory to all pupils whose at least one parent is a Roman Catholic .