The correct answer is D. Food Shortages.
It failed because either the change did not work well in many business settings, or it was inefficient (due to the inefficiency of the conveyer-belt system). A more accurate reason is that the circuits couldn't handle the traffic during peak hour. The customer's orders were regularly mixed up. The conveyer-belt system was not fast enough or efficient enough to handle it.
A. Natural disasters, such as tsunamis, earthquakes, and floods
hope this helps
Answer:
The Mediterranean Sea because they had navy in there and had control over it.
Explanation:
I would say A primary source...