The correct answer is C. Before the Cuban Missile Crisis was resolved, the United States enforced a military quarantine in international waters.
The installation of the R-6 medium-range ballistic missile by Soviet military personnel in Cuba was discovered by the photographs of a special type of American spy plane, the U-2, flying over Cuba in mid-1962.
On October 22, 1962, Kennedy addressed the American public with a 17-minute televised message. There, he spoke for the first time publicly about establishing a quarantine and a "naval siege" around the island of Cuba. In order to comply with this measure, American warships and aircraft were deployed in the Caribbean Sea on October 23, destined to carry out an authentic air-naval blockade.
