Which of the following best explains why it is difficult to define a cultural region?

Question

It is difficult to define a cultural region because culture is constantly shifting and people perceive cultural regions differently
It is difficult t define a cultural region because it maps show different borders

It is difficult to define a cultural region because a formal region may not be the same as a functional region

Answer 1

It is difficult to define a cultural region because culture is often influenced by multiple factors and can overlap with other cultural regions