The kingdom went into decline from the mid-16th century CE when the Portuguese, put off by the interference of Kongo's regulations on trade, moved their interests further south to the region of Ndongo. The latter kingdom had already defeated a Kongo army in 1556 CE.
D. That Romeo has committed a sin by sleeping with Rosaline
B. the sinking of the Luisitania because it is what drove the United States into World War I.
C. It has a powerful military that strongly influences the government and economy