Which of these sentences uses an appositive correctly?

That ladybug, a very delightful insect, just landed on my bedroom windowsill.
That ladybug a very delightful insect, just landed on my bedroom, windowsill.
That, ladybug a very delightful insect, just landed on my bedroom windowsill.
That ladybug a very delightful insect just landed on my, bedroom, windowsill.

Q&A Education