When is the Qunut supplication recited during the Witr prayer?

The Witr Prayer: Rulings, Qunut, and Congregation

• In the third rak'ah, while standing before proceeding to bowing (Ruku').
• While bowing in the third rak'ah.
• In the final sitting after Tashahhud.
• After standing up from bowing in the second rak'ah.