What term refers to the process of trying to create good, open relations between countries? a) assimilation) confrontation) diplomacy) isolation?

I believe the answer is: Diplomacy

During a diplomatic visit, two or more government officials tend to talk and formulate the type of regulations that would benefit all parties involved.

For example, United states and many countries in latin America has a relatively good diplomatic relation and we made it easy for the products that created from each of our countries to be imported (without paying high taxation)