Answer:
Option (c) is correct.
Step-by-step explanation:
Ad valorem tariffs refers to the tariff which are used to restrict the imports from the other country and protect the domestic producers. It is calculated as a fraction of the total value of the goods imported.
For example: Thee United States imported some quantity of automobiles from Thailand. Hence, the ad valorem tariff is 3% of the total value of automobiles imported from the Thailand.