The correct answer is option 2, UK. The idea of a parliamentary form of government is adapted from the United Kingdom. In a parliamentary system, the executive branch of government is accountable to the legislative branch. This means that the government is formed by the party or coalition of parties that has the majority of seats in the parliament. The leader of the majority party becomes the head of government. The parliament also plays a key role in making and passing laws. This system was developed and refined in the UK and has been adopted by many countries around the world, including India, Canada, Australia, and New Zealand. It provides a system of checks and balances and ensures that the government is accountable to the people`s representatives.