This excerpt most directly reflects the continuation of which policy?

The correct answer highlights the principle that the independent nations of the Americas should remain free from European intervention, which is a central tenet of the Monroe Doctrine established in 1823. The essence of this doctrine was to assert that the Western Hemisphere was no longer open to European colonization or interference, thus promoting the idea of American sovereignty and independence among its nations.

The excerpt likely reflects the growing sentiment in the United States during this period, emphasizing a policy of non-intervention and protection of sovereign states within the Americas. This position aimed to safeguard the newly independent countries from European imperial ambitions, reinforcing the idea that the U.S. would oppose any external attempts to control or influence these nations.

In contrast, the other choices focus on aspects that do not align as closely with the historical context of the Monroe Doctrine. Economic support for European nations and military alliances with European powers do not reflect the independence and self-determination that the Monroe Doctrine sought to protect. Furthermore, colonization of foreign territories represents a different imperialistic approach that contradicts the principle of freedom from European intervention. Thus, option B clearly encapsulates the ongoing policy of the time, emphasizing the United States' stance on ensuring the autonomy and independence of nations in the Americas.