Answer:
Generally speaking, a key development that occurred globally during the classical era was "D. The expansion of cultural exchange through regional trade", since this was a time of cultural and technological diffusion.
Explanation:
I believe it's "<span>the source of the Mississippi River."
</span>
I think it’s D. The candidate must appeal to a wide range of voters
<span> The </span>school-to-work<span>education emphasizes learning both in </span>schools<span> and in the local businesses
</span>
