Which among the following is a Crown Dependency of the UK and not a part of it?

Okay, let's talk about the Channel Islands and their unique relationship with the UK. Think of the UK as a family, and the Channel Islands are like close cousins. They aren't directly part of the UK itself, like England, Scotland, Wales, and Northern Ireland are. Instead, they're Crown Dependencies. This means the British monarch is their head of state, but they have their own governments and laws. This goes way back to the Norman Conquest in 1066! William the Conqueror, who became King of England, was also the Duke of Normandy. The Channel Islands were part of that Duchy, and that connection has persisted even though mainland Normandy is now part of France. So, while the UK is responsible for their defense and international relations, the Channel Islands manage their own internal affairs, including things like taxation. This is why they aren't part of the UK proper, unlike Wales, which is a constituent country of the UK. The Falkland Islands and St Helena, while overseas territories with a connection to the UK, are not Crown Dependencies with the same historical and constitutional relationship.