While reading a friend's status update on a social networking site, cory ignores the scrolling newsfeed and the changing advertisements on the right-hand side of the screen. cory is

selective attention

Explanation:

Selective attention -

It is the method by which , certain material or object are given attention over the other , for some specific period of time , is known as selective attention .

Attention , is basically the importance given to certain task or object , similarly , selective attention , is the importance given to selected object for a specified time period .

It is a type of natural phenomenon , where our mind it self cancel out certain things from the eyesite or thoughts .

Similarly , from the example given in the question , Cory is demonstrating the act of selective attention .

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.

the answer to your question is,

old stone age.

-mabel < 3