Question: When using the `clone()` function to duplicate an element, what is one of the main concerns your code needs to watch out for?

  1. The `clone()` function may ignore data attributes on the original elements.
  2. The `clone()` function may result in elements with duplicate ID attributes.
  3. The `clone()` function may remove CSS classes from the cloned elements.
  4. The `clone()` function may not respect the attribute order of the original elements.

Answer: The correct answer of the above question is Option B:The `clone()` function may result in elements with duplicate ID attributes.