The Period When the United State Became the Leading Global

The period when the United State became the leading global power in the Central American region and the Caribbean is best dated around:

A) Around 1823, the year of the Monroe Doctrine
B) Around 1848, with the annexation of Texas after the war with Mexico
C) Around 1898, after the U.S. defeat of Spain
D) Around 1948, as the Cold War unfolded