Washington D.C. was a political city.
The example of an ancient Arabian state that traded extensively and controlled territories on the East African coast can best be used as evidence of "the long-term continuities in state-building in coastal East Africa."
This is because long-term state-building involves trade relations and commerce, among others, such as politics and economics.
Thus, information of extended trades between the Arabian state and the East African coast shows long-term state-building between the two regions.
Hence, in this case, it is concluded that the correct answer is option B. "the long-term continuities in state-building in coastal East Africa."
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<span>Sovereignty is the absolute power of each state which gives them
the ability to make laws and control their resources without the interference
of other nations. Westphalian sovereignty also states that each state no matter
how large or small has equal privilege in the international law.</span>
This is known as the Peasant Revolt
In June rebels from Esscex and Kent marched toward London. On the 13th the Kentish men, under Wat Tyler, entered London, where they murdered some Flemish farmers.