Which statement accurately describes dynamic information in React components?

Which statement accurately describes dynamic information in React components?

• A. It can only come from props.
• B. It can come from both props and state.
• C. It must come from a global variable.
• D. It should be hard-coded in render.

Answer: (B)

Dynamic information in React components is data that can change and trigger a re-render. The two main sources for that data are props (data passed from a parent) and state (data owned and updated by the component itself). Since either can evolve over time, dynamic information can come from both props and state. Relying on a global variable or hard-coding values in render wouldn’t automatically update the UI when things change, so they don’t describe dynamic information the way React uses it.

Dynamic information in React components is data that can change and trigger a re-render. The two main sources for that data are props (data passed from a parent) and state (data owned and updated by the component itself). Since either can evolve over time, dynamic information can come from both props and state. Relying on a global variable or hard-coding values in render wouldn’t automatically update the UI when things change, so they don’t describe dynamic information the way React uses it.