they mean governments will prefer to purchase more from domestic industries than from foreign suppliers.

they create unnecessary costs for foreign producers.

they amount to an import tariff.

they increase tax revenue for the government.

The price consumers are willing to pay for a unit.

The cost of providing a unit.

The difference between the price a consumer pays for an item and the price he/she is willing to pay for it.

The profits made by a firm.

The US government requires revenue from the sales taxes on electric cars.

It is an infant industry. 

Tesla primarily exports its cars and exports are good for the domestic economy.

Elon Musk is an American citizen and it is patriotic to "Buy American".

trademark

patent

copyright

Person A

Person D

None of the above

Person B

Person C

Person A

Person D

None of the above

Person B

Person C

... a tariff would fall entirely on Canadians

... a tariff would fall entirely on foreigners

... then the government should impose a quota. 

... the incidence of the tariff depends on the shape of the demand curve

... a tariff would fall partly on Canadians and partly on foreigners

hire foreign labour

follow the theory of comparative advantage

export and import the same good

restrict trade

negotiate free trade agreements

They get the tariff revenue.

It prevents imports from rising above a specified quantity.

It reduces their producer surplus, making them more efficient.

It raises the price for which they can sell their product on the domestic market.