Which invention improved Mayan agricultural methods? O the relief
O the codex
O the 365-day calendar
O the concept of zero

C). the 365-day calendar

Explanation:

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answer; /// i believe that the correct answer is (divison of labor);

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: