Answer:
Country A and Country B have a binding agreement to this arrangement under customary international law.
Explanation:
Options:
A)The government of Country A may not arbitrarily begin to charge fees for items brought in from Country B.
B)Country A and Country B have a binding agreement to this arrangement under customary international law.
C)Country A and Country B have no binding agreement under customary international law.
Its important to remember that when two countries allow their respective citizens to freely trade free goods that is a free trade agreement, and this arrange is created under the customary international law this means that unless any of them want to face serious consequences on arbitrary fees on imports from either country, they have to respect those agreements, also these kind of agreements are often signed or else the country would immdiately charge fees on imports so the correct answer would be B.
