x squared minus 6. ​(Simplify your​ answer.)

What are the domain and range of the​ inverse?
A.
The domain is xgreater than or equals0 and the range is ygreater than or equals6.
B.
The domain is xgreater than or equals6 and the range is ygreater than or equals0.
C.
The domain is xgreater than or equals0 and the range is ygreater than or equalsnegative 6.
D.
The domain is xgreater than or equalsnegative 6 and the range is ygreater than or equals0.

C. The domain is x greater than or equal to 0 and the range is y greater than or equal to negative 6.