The phrase that best completes the diagram is: the annexation of overseas territories led to increased trade in the Pacific and the Caribbean. The Option A is correct
The Spanish-American War of 1898 marked a crucial turning point in American foreign policy, as the United States emerged victorious and gained control over former Spanish territories.
This victory resulted in the annexation of territories such as Puerto Rico, Guam, and the Philippines. The acquisition of these overseas territories strategically positioned the United States to expand its influence and economic interests in the Pacific and the Caribbean.
With newfound territories, the U.S. could establish naval bases, secure trade routes, and engage in commerce in these regions. This expansionist policy not only bolstered American geopolitical influence but also fostered increased trade and economic activity, creating new opportunities for commerce and further shaping American imperialism in the early 20th century.
Note: The diagram is attached below.