When nations continue to experience large and ever-growing trade deficits

When nations continue to experience large and ever-growing trade deficits, creditor countries will inevitably quit taking IOUs and trade will stop.

An IOU is a casual record that recognizes an obligation owed, and this obligation does not necessarily include a money related an incentive as it can likewise include physical items.

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 your looking for is c. : )