Which “four powers” agreed to the four power treaty of 1921?

The Four Powers that agreed to the Four Power Treaty of 1921 is the major allies in Asia, Europe, and in the Americas.  The four are:

Japan, United Kingdom, France, & the United States.

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explanation:

"globalization has greatly impacted the united states and american citizens. first and foremost, globalization has spread american influence throughout the world. globalization has opened up more markets for the united states, which in effect american companies sell their products worldwide. there has been a rise of multinational corporations and their influence has greatly increased."