In state management, to listen to changes in a specific slice of the state tree, you'd use ________.

In state management libraries like NgRx or Redux, Selectors are used to listen to changes in a specific slice of the state tree. Selectors allow you to extract and compute derived pieces of state efficiently. They are particularly helpful when you need to extract specific data from your state for presentation purposes or when a component should respond to changes in a specific part of the application state.