Answer :
If Cuba had entered into a trade agreement with an Asian country in 1903 without US approval, it would have violated the Platt Amendment (C). This Amendment was a major foreign policy of the U.S. Government to maintain control over Cuban policy following Cuba's independence from Spain.
Correct answer choice is:
The Platt Amendment
Explanation:
The Platt amendment was a series of assistance that, in 1901, American Government insisted Cuba to raise its new constitution, commanding Cuba to remain out of debt and providing the America the right to interfere within the country and therefore the right to shop for or lease Cuban land for armed service and supplying stations.