How did hay’s suggestion of an open door policy in china benefit the united states over other nations?

the united states produced goods of better quality and lower cost than other countries.
the united states enjoyed a historically stronger relationship with the chinese government.
the united states was the only nation granted permission to collect taxes on the goods it traded within china’s borders.
the united states controlled more foreign ports than other countries.

the correct answer is the United States produced goods of better quality and lower cost than other countries.

A. The United States produced goods of better quality and lower cost than other countries.

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in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

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