The most accurate comparison of the advantages of unitary and federal governments from the provided options would be:
Federal governments offer more personal freedom. Unitary governments have less internal division.
This option reflects a common distinction made in political science: federal systems typically provide greater individual autonomy and representation by dividing powers between national and regional authorities, which can foster personal freedoms. Conversely, unitary systems often have centralized control that can lead to more streamlined decision-making, potentially reducing internal divisions, but may offer less personal freedom compared to federal arrangements.