The term "marble cake federalism" refers to what development

Conceives of federalism as a marble cake in which all levels of government are involved in a variety of issues and programs, rather than a layer cake, or dual  federalism, with fixed divisions between layers or levels of government.

Explanation:

the best description of postwar writers might be progressive.

following the war, writers showed a tendency to work on artistic or social matters rather than political themes. while postwar literature may not have been the greatest period of english literature, the themes provided excellent critics a high number of novels. such examples include anthony burgess, anthony powell and frank kermode, all of which can be placed under the progressive view.

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