Through which parts of the Roman empire did the
invaders spread? Which parts did they not enter?

i would say b probably

answer; /// the correct answer is (a) burned the city;

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )

answer; decipher the motives for why people behave the way they do;