(A) Cuba
(B) ** Columbia
(C) Croatia
(D) Cambodia
EXPLANATIONS BELOW
Concept note-1: -Hope became reality with the passage of the Spooner Act of 1902 by the U.S. Congress, which authorized purchasing the assets of the French company and building a canal, provided that a satisfactory treaty could be negotiated with Colombia (of which Panama was then an integral part).
Concept note-2: -France was ultimately the first country to attempt the task. Led by Count Ferdinand de Lesseps, the builder of the Suez Canal in Egypt, the construction team broke ground on a planned sea-level canal in 1880.
Concept note-3: -On November 3, 1903, the nation of Panama was born. The U.S quickly assumed parental interest. Americans had written the Panamanian Constitution in advance; the wife of pro-canal lobbyist Phillipe Bunau-Varilla had sewn the country’s first flag.
Concept note-4: -In January 1903, Colombia signed a treaty to permit the United States to build the Panama Canal. The treaty gave the United States a canal zone. This was a piece of land ten kilometers wide across Panama. The United States could use the canal zone for one hundred years.
Concept note-5: -In 1903, Panama declared its independence from Colombia in a U.S.-backed revolution and the U.S. and Panama signed the Hay-Bunau-Varilla Treaty, in which the U.S. agreed to pay Panama $10 million for a perpetual lease on land for the canal, plus $250, 000 annually in rent.