Answer:
<em>The correct option is A) He argued that slavery was necessary, benefiting both slaves and slave owners</em>
Explanation:
John C Calhoun believed that slavery was not an evil act rather it was a positive good which benefited both the slave and slave owners. The claims made by John C Calhoun were on the grounds of white supremacy and paternalism. He was of the view that every society is ruled by a group of elites and it is the right of the slaves to serve the elites.
John hay negotiate to establish open door policy with: China and the countries with spheres of influence.
At that time, john hay believe that establishing open door policy with these countries would bring economic wealth to united states. Under this policy, United states would be able to trade with china and those other countries without many restrictions such as tariff or quota. This would bring more profit to american producers.
Answer:
A. Millions of people were killed despite very little European territory
being gained or lost.
Explanation: