Question

if saudi arabia’s government puts a limit on how much israeli dead sea salt it will import this year, what trade barrier is this?
tariff
quota
opportunity cost
embargo

Explanation:

A quota is a trade barrier that limits the quantity of a good that can be imported. In this case, Saudi Arabia is limiting the amount of Israeli Dead Sea salt it imports, which fits the definition of a quota. A tariff is a tax on imports. Opportunity cost is an economic concept related to the value of the next - best alternative forgone. An embargo is a complete ban on trade with a particular country or for a particular good (more extreme than a quota).

Answer:

B. quota