What is a political party leader

In a governmental system, a party leader acts as the official representative of their political party. The party leader is typically responsible for managing the party's relationship with the general public. In many representative democracies, party leaders compete directly for high political office.

Explanation:

the navigation act prevented the colonies from exporting to countries other than britain and it prevented the importation of goods by other countries as well. so i believe the correct answer is d. other nations could not deliver goods to the colonies.

hope this .

i think its the outcome of people's preferences.