What major government achievement was the first of its kind during the Songhai Empire? * A the first election

B the first trade route was established

C the first professional army was established

D the fist king was established

(D)

Explanation:

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

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