Find the Domain and Range of the Inverse of the Given

Multiple Choice

Find the domain and range of the inverse of the given function.
-f(x) = - 4

A) Domain: all real numbers; range: [ -4, $\infty$ )
B) Domain: [ -4, $\infty$ ) ; range: all real numbers
C) Domain: [0, $\infty$ ) ; range: [0, $\infty$ )
D) Domain and range: all real numbers