When jane had leukemia as a child she had to undergo numerous bouts of chemotherapy. the chemotherapy always made her nauseous. as she went through a year of treatment, the waiting room started to make her nauseous. the waiting room became

The waiting room became "conditioned stimulus".

A conditioned stimulus refers to a substitute stimulus that triggers indistinguishable reaction in a life form from an unconditioned stimulus. Basically, a conditioned stimulus influences a living being to respond to something since it is related with something unique. Conditioned stimuli start as unbiased upgrades that don't unlawful a reaction until the point that molding has happened by means of rehashed incitement. In other words, the reaction is found out after some time. After repeated presentation, the neutral stimulus ends up matched with the unconditioned reaction and turns into a conditioned stimulus.

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.