Why would a country want to join a trade bloc such as the european union?

D) To freely trade with the bloc's other member countries.

Explanation:

Free trade means there aren't any tariffs between any two countries. So any two countries can sell whatever goods they want without any extra taxes, fees, etc added on.

Choices A through C all describe situations in which trade is reduced/restricted between any two countries. This makes a nation more independent, but the drawback is that they aren't connected to the global stage as much.

Theoretically in an economic sense, a country is better off being connected more globally because it allows for specialization to happen and it lowers costs. Of course on a practical realistic level, things are more complicated but this is the general idea at least.

d

Explanation:

answer; ///attempts to change more than once behavior at the same time;