It’s because they are independent I believe I am not sure but lol I’m an Asian
I hope it kinda helped
Herjólfsson later sold his ships to Ericson, who sailed west intentionally and was not blown off course trying to reach Greenland after meeting King Olaf, as in the
Saga of Eric the Red
. With wood being in very short supply in Greenland, the settlers there were eager to explore the riches of this new land. Ericson explored this coast and eventually established a short-lived colony in what he called Vinland.
It is D, they are nominated by the president
Because of the needed help in bargaining for higher wages and better working conditions.