After the success of the Apollo space program, in the mid-1970s NASA budget cuts results in a decrease in the number of jobs for aerospace engineers. This was an example of .

Structural unemployment.

Explanation:

As the exercise exemplifies, the decrease in the number of jobs for aerospace engineers after the success of the Apollo program resulted in structural unemployment. This type of unemployment refers to a mismatch between jobs available and the skill levels of the unemployed. Like the exercise explains, qualified aerospace engineers have an "overqualification" for many jobs, making them a part of this unemployment that causes certain groups to have difficulties finding a job.

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.