Which approach to foreign policy involves sending ambassadors to other countries? (a) isolation (b) diplomacy (c) intervention d) imperialism

The correct answer is B.

Diplomacy is the art and practice of conducting negotiations between representatives of states.

An ambassador is an official envoy and a high-ranking diplomat who represents a state in a foreign capital. An ambassador has the highest diplomatic rank.

The foreign policy of diplomacy involves negotiating treaties with other countries, attending state dinners, arranging visas for travelers and representing the interests and policies of the diplomats' home country abroad.

no every country is held to the same degree as others just some member countries such as the usa and germany are more economically sound so the need to show there support to all others  

social contract theory, nearly as old as philosophy itself, is the view that persons' moral and/or political obligations are dependent upon a contract or agreement among them to form the society in which they live