The correct answer is option 3, Sweden. The concept of Ombudsman is derived from the Swedish word "ombudsman," which means "representative" or "agent." The role of an Ombudsman is to act as an impartial, independent, and neutral mediator between the government or administration and the citizens. Ombudsman offices were first established in Sweden in the early 19th century and have since been adopted by many countries around the world. It is important to note that while the concept originated in Sweden, Ombudsman institutions may vary in their structure and functions from one country to another. Therefore, the idea of the Ombudsman is not taken from the USA, China, or Britain, as mentioned in the other options.