The three correct examples of trade barriers from your list are:
- Tariffs - Taxes imposed on imported goods to make them more expensive, thereby protecting domestic industries.
- Embargoes - Official bans or restrictions on trade with specific countries or the exchange of specific products.
- Quotas - Limits set on the quantity of a particular good that can be imported or exported during a given time period.
"Advantages" and "comparatives" are not examples of trade barriers.