Respuesta :
The problem arises when the barriers created in respect of trade is the retaliation with creating trade restrictions by other countries also.
Option B is correct.
What is trade?
Trade is the act of acquisition and selling of goods and services inside or outside the countries. The importation results in bringing the foreign goods into the home country whereas exportation means sending domestic goods to worldwide regions.
When there are restrictions in engaging with respect to trading activities in the home countries, then the outside countries also implementing the trade restrictions in order to fight back. The restrictions can be heavier taxes, government licensing, tariffs on goods, regulations, rules, duties, etc. which can prevent the worldwide countries to get engage in any kind of trade with the domestic nations.
Therefore, the problem being defined in option B is correct.
Learn more about free trade in the related link:
https://brainly.com/question/1413860
#SPJ5