The correct answer is C. The correct spelling is "successor".

A. Subservience is the state of being subservient or submissive. B. Souvenir is a keepsake or memento of a place or event. D. Stirrup is a looped metal frame attached to a saddle and used by a rider to keep the foot in place.

The word "succesor" is not a real word. The correct spelling is "successor". A successor is someone who takes over the position of another person, especially after their death or retirement.