In Latin America Since 1950

In Latin America since 1950,

A) Mexico is the only major Latin American state that has not seen a massacre of protesting students or workers by government police and/or troops.
B) the Soviet Union's role in the Cuban Missile Crisis convinced the Castro regime it did not need to try to create allied regimes in the Western Hemisphere.
C) import-substituting industrialization often led to increased government funding of economic development because of a lack of available private capital,either domestic or foreign.
D) no Marxist politician achieved national power.
E) the established political power of large landowners was finally ended in the late 1970s.