A secondary source<span> interprets and analyzes </span>primary sources<span>. These </span>sources<span> are one or more steps removed from the event. </span>Secondary sources<span> may have pictures, quotes or graphics of </span>primary sources<span> in them. Examples include textbooks, magazine articles, histories, criticisms, commentaries, and encyclopedias.</span>
Generally speaking, a key development that occurred globally during the classical era was "<span>D. The expansion of cultural exchange through regional trade", since this was a time of cultural and technological diffusion. </span>
I believe the answer is beef
He predicted "that the day will come when ... you will have to make a ... an area of the new Czechoslovakia with a significant German-peaking population"
it is a prophet hope i helped