Which of the descriptions below best describes Levittown?
a) It was the codename for the CIA mission in Guatemala that topped that country's democratically elected leader
b) It was a suburb that began development on Long Island in 1947, and conveniently allowed residents easy access to New York City by car and by train
c) It was a popular American soap opera in the 1950s produced by the Disney corporation
d) It was a powerful defense contracting company co-owned by Secretary of State John Foster Dulles