Paragraph 16 supports the author’s argument in paragraph 18 by — A. emphasizing the need to remember what is sacred

B. addressing political factions in society today

C. speaking of current tragedies that are comparable to events in history

D. using what is known of the past to help stop the terrors of the present

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.

after the roman empire, the catholic church began to unify by taking on many duties of a government.

this is a good question! i'll do some research and come back when i have the answer!

they bring people together to achieve control of the government

basically choosinng what sets in   congress and presdicny this is to keepthe antion hole and so it can last because wiht out authority it wouldnt last a week