Which of the following statements about Nibbana/Nirvana are true?

- A) Nibbana is the destruction of the defilements. - B) Nibbana is merely the destruction of defilements. - C) Nibbana is an existing reality that is subjected to the mind totally free of defilements. - D) Nibbana is an existing reality that destroys the defilements in the mind as a result of being the object of Samma Samadhi(Right Concentration) - E) Nibbana is an existing reality that is subjected the mind free of certain defilements. - F) Nibbana is an existing reality that is subjected to the mind when the defilements are subdued. Nibbana is said to be uncaused. So it should be already existing, even before the defilements are removed. That makes the statement 'B' invalid in my opinion.