18. The Open Door Policy in China was designed to: A) Establish a U.S military presence in Asia. B) Promote equal trading rights among foreign nations in China. C) Limit Japanese influence in East Asia. D) End European colonization in the Pacific.

The Open Door Policy in China was designed to:<br /><br />B) Promote equal trading rights among foreign nations in China. <br /><br />This policy aimed to ensure that all foreign nations could trade with China on an equal basis, preventing any single nation from monopolizing Chinese markets.