The correct answer is A. Customs Duty.
Explanation
Customs duties ais the name of the taxes, levies, or payments that are set directly or indirectly for the importation of merchandise into the national territory. Additionally, stamp duty or levies required regarding the documents required for importation. Therefore, the correct answer is A. Customs Duty.
I believe that would b B. The British closed down the Boston harbor completely
The correct answer is "A".
The Domino Theory was developed in 1950 in the US administration. It proposed the idea that if one country in a region was governed by a left-wing power which shared communist beliefs, neighbor countries will follow suit. This led the United States to get involved in numerous armed conflicts around the world, such as the Korean War, in order to prevent the spread of Communism.