What makes it easy for the uk to trade with countries in the americas

Shared heritage and common values have helped make the U.S. and U.K. historically strong trading partners. And although the country's exit from the European Union is expected to bring with it a temporary increase in import-export trade uncertainty, the two countries are expected to remain so over the long run.

Explanation:

your answer is

to dominate europe

and i know for a fact it can't be the others

b: the establishment clause  

b: socialism