Answer:
d. tariffs on imports
Step-by-step explanation:
The word "tariff" means "tax." It is an amount of money that is being paid to the government for purchasing imported goods or products that come from other countries. This makes the imported goods more expensive than the local goods because the importers raise their prices. In this sense, the Americans will be encouraged to buy goods coming from their own country (American-made goods) because they are less expensive.