Which later developement would occur following the publication of this poster

cuban communists pressured the soviet union to place missiles in cuba.

d is the answer. leo should include the source.

four sitting presidents have been assassinated while in office but the first was abraham lincoln,

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.