Answer:
true
Step-by-step explanation:
The Open Door policy resulted from the US initiative in 1899 that enabled countries to trade freely with China.
The trade partners like Great Britain, Germany, France, Russia, Italy and Japan also benefited from this.
A set of principles on trade would also ensure the territorial and political integrity of China.
Since the US called for means to ensure trade would be carried safely, and political support for China was given, the US would quickly take a large role in the world trade and political affairs than ever before.