What factor worked against unification in both germy and italy?

The unification was thorough fought by major European powers who feared a change in balance of power in the region.
 Prussia fought with Denmark, Austria and France, which  also played significant roles in the unification of the German states. The states of Italy were under the auspices of Austrians, who would go to any length to avoid a unified Italy.

The social difference that caused sectionalism in the antebellum era would be c.)  north was disorganized. the north had slow population growth, where as the south had mass immigration.hope this really mark