Papua new guinea is a member of the commonwealth of nations and therefore maintains a high commission in australia. in what city are all high commissions located?

Canberra

Explanation:

Canberra is known as  Australia's capital city. The city is located at the northern end of the Australian Territory. Canberra is designed to be as an official seat of the government of Australia, and many other High Commissions offices. Canberra is a planned city to have old and new parliament house, Gardens, Museums and so on.

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.