Answer:
The Vikings of Norway are the first Europeans known to have visited North America (u.s.)
<span>Antipsychotic medications would not be effective if they did not help regulate the parts of the brain that function to control mood and perception, because even a reduction in hallucinations is not enough to make a person more stable if their emotions are not also stabilized. Hope this helps! If there's options, let me know and I can help!</span>
Tariff makes the most sense. Embargo is a ban on goods or a country, subsidy is money granted from the government to a business and has nothing to do with trade, quota is a limited amount of a product and again doesn't really have anything to do with trade.
