<span>The one that best describes the effect of decisions made by the Marshall Supreme Court is letter D, the Court encouraged the growth of businesses by freeing them from meddling state laws. John Marshall was the fourth Chief Justice of the Supreme Court of the United States.</span>
The policy is known as the "Open Door Policy."
John Hay created this idea in hopes that America and countries all over Europe could trade peacefully with China. This concept was developed in order to protect America's trade interests while also ensuring that no other country would establish a monopoly on trade with China. Within this policy, all countries would agree not to interfere with another country's trade with China.
Seems like an open ended question but I'm going to go with tax breaks for those industries
