What historical circumstances now exist that may not continue indefinitely?

The .(dot) com era

Explanation:

The dotcom era was a speculative bubble formed by the rapid rise and interest in internet companies, The theory was that out of a collection of like companies, one was bound to "make it", and businesses and investors alike were more than willing to put their bets on the table.

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:

under god i have placed my chiest strentgh and the safe guard to my loyal subjects