The type of details used in the sentence "prehistoric times are generally divided into three epochs -- the stone age, the bronze age, and the iron age" is

the answer should be d) he was one of those young thousands who greeted the war with a certain amount of relief, welcoming the liberation from webs of tangled emotion" since it is the best option because it shows his desire to free himself. 

hope this answer you! have a great day.

i'm pretty sure i had this question the other day and b was the right answer.