In the south Greece was divided among a number of competing political units. after 1204 the dukes of Athens controlled much of central Greece, with their main base at thebes. they had political interests to the north and in the Peloponnese
The Renaissance inspired new possibilities for power & prestige
To stay out of foreign affairs unless they directly affected the U.S itself.
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The correct answer is "A and D". As regards A, the closing down of American factories in post-industrial age has diminished the number of factory workers living in the united states and thus have decreased the ability of workers to form unions that reach a critical mass. As regards B, the most important act is the Taft-Hartley Act (1947) which managed to restrict the activities and rights of union labours.