The social psychologist who is best known for his robbers cave experiments and his study of prejudice, conflict resolution, and group processes is:

The American social psychologist who is being identified in the statement above is Muzafer Sherif. He is the one responsible for developing the realistic conflict theory and as well as the social judgement theory in which he is known for because of his contribution to these theories.

answer; i do believe that the correct answer is (punch card ballots);

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.