What was the effect of the 26th amendment ? a. the right to protest b. the president gained powers to wage war c. the draft was abolished d. the voting age was lowered

I believe the answer is D. the voting age was lowered. Hope this helps!

what are local authorities doing to fix the problem

explanation:

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.