A. They were meant to protect U.S. business interests in China.
In 1899 and 1900, the Open Door policy was a declaration of laws inaugurated by the United States. It requested for the certainty of similar opportunities for all nations dealing with China and for the assistance of Chinese provincial and organizational sovereignty. The agreement promised fair trade arrangements with European nations and the US. The Open Door Policy was proclaimed by the US as business was progressing in China.