The correct answer is option 1 - United Kingdom. The United Kingdom does not have a written constitution. Unlike many other countries that have a single, written document that outlines the fundamental principles and laws of the nation, the UK`s constitution is largely unwritten and is based on a combination of statutes, common law, and conventions. Instead of a single document, the UK`s constitution is derived from various sources, including acts of Parliament, court decisions, and established customs and practices. This flexible and evolving constitutional system allows for greater adaptability and flexibility in response to changing societal and political circumstances. However, it also means that the UK`s constitution is not codified in one specific document.