The protectionism adds a new kind of tax on the imports called Tariff. With the Tariff, the price of imports is increased, and becomes more expensive than locally produced products. This will protect the domestic economy.
It increase the price of imports which helps prevent domestic industries because import become more expensive than locally produced product. So it help the economy to maintain their products
I believe it is A) Input because input costs means the cost of direct material, direct labor, and other overhead items devoted to the production of a good or service.
