I believe the answer is E
Answer:
The error was in sending 1500 soldiers to Cuba.
A brigade of 1,500 CIA-trained troops assaulted the beach in Cuba's Bay of Pigs. Kennedy planned a secret expedition to overthrow Fidel Castro in order to stem the spread of communism across the globe. But the subsequent five days saw one of the worst military disasters in U.S. history.
Under the codename Operation Zapata, President Kennedy was given the go-ahead just days after his inauguration. The main force would head into Matanzas, establishing a defensive position. United Front representatives would be sent from South Florida to create a provisional administration. The plan's success relied on Cubans' ties to the invaders.
Following these orders, some 20,000 soldiers advanced towards the shore, thus Castro's air force continued to control the skies. However, six Cuban aircraft were left intact after the initial strike. During the operation, plans for a tactical maneuver backfired, and the Cuban air force was not wiped out. The Bay of Pigs incident had a lasting impact on the Kennedy administration. The administration began Operation Mongoose, a plot to disrupt and destabilize the Cuban government and economy, including the prospect of assassinating Fidel Castro.
Explanation:
Answer: C. increased trades with merchants from Islamic areas