<u>The following were provisions of the Open Door policy</u>:
Option 1. All foreign countries had to pay taxes equally
Option 3. Only the Chinese government could collect tariffs on trade.
Option 4. Countries with a sphere of influence should maintain free access to their ports.
Explanation:
The Open-Door policy was issued by the United States in the late 19th Century into the 20th Century that had the main objective of asserting that commerce between China and several other countries would be capable thanks to a proper system implemented. By stating that all countries that commerce with China would have the same ports of entry, the policy reassure that there would not be a preference upon certain countries over others.
