It would be that "c. It disrupted trade and commerce" that was not a consequence of Greek colonization, since in fact it led to a dramatic increase in commerce in the region.
Answer:
the U.S. population is increasingly consisting of more elderly citizens.
Explanation:
Yorktown sits on a hill overlooking the York River. Which can be great, if you can keep provisioned.
The British were not able to keep provisioned, though. The American Army laid siege to the city, surrounding it on three sides, while the French Navy cut off the water access to Yorktown and cut Lord Cornwallis' army off from its supplies.
When you had to reload and someone was running at you, then you could have a great way to defend yourself. hope this helps, have an amazing day :)