Developmentalists who study the effects of home schooling on academic performance are examining

Cognitive development

Explanation:

Cognitive development is all about how a person perceives, thinks, and gains understanding of his or her environment through the interaction of genetic and learned factors. The many areas of cognitive development are information processing, intelligence ,reasoning, language development , and memory.

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.

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