National unions differed from local unions in that national unions
a) included workers from different industries.
b) did not support the eight-hour work day.
c) refused to use strikes as a way to achieve their goals.
d) excluded craft union members and skilled workers.

the correct answer that would best complete the given statement above would be option b. expanding civil services. diocletian and constantine paved the way for foreign invasion by dividing the empire, creating administrative bureaucracies and reorganizing the military, except for expanding civil services. hope this answer .

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explanation:

they died because of a disease during the first spanish colonies.