Which of the following best defines a tariff?

A tariff is best defined as a tax imposed on an imported good. This tax is levied by a government and serves multiple purposes, such as generating revenue for the government and protecting domestic industries from foreign competition by making imported goods more expensive. By increasing the cost of imports, tariffs encourage consumers to buy domestically produced goods, which can help stimulate the local economy. This concept is integral to trade policy and international economics, as it illustrates how governments can influence trade balances and protect local markets through taxation.