After serving in combat the sight of planes flying overhead makes a veteran feel uneasy, illustrating the behavioral process of:

sensitization

Explanation:

This scenario best illustrates the behavioral process of sensitization. This term refers to the neuroadaptive process which is characterized by an increase in a particular behavior after repeated exposure to drugs or other stimuli. In this scenario, the stimuli in question are planes flying overhead, which after experiencing this stimuli consistently in the war the veteran now feels uneasy every time that stimuli occur.

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.