(A) ** The Panama Canal
(B) The Cuban Revolution
(C) The Monroe Doctrine
(D) Moral Diplomacy
EXPLANATIONS BELOW
Concept note-1: -More than a century ago, the opening of the Panama Canal revolutionized international trade by making it much quicker and easier to travel between the Atlantic and Pacific Oceans.
Concept note-2: -The widening of the canal has increased maritime traffic within Latin America and the Caribbean (LAC). Major ports in the regions have made huge investments in port expansion and infrastructural development to accommodate neo-Panamax vessels.
Concept note-3: -It promulgated the construction of new, larger ships with significant cargo-carrying capacity. It enhanced the posture of the United States as part of the global intermodal container freight sector, helping to move goods faster and cheaper, leading to more prosperity.