Given f(x)=-3 find the domain and range of its inverse.
A. domain: (-∞, 0) U (0, ∞) range: (-00, 3) U (3,00)
B. domain: (-00, 3) U (3,∞) range: (-∞, 0) U (0, ∞)
C. domain: (-00, -3) U (-3,∞) range: (-00, 0) U (0, ∞0)
D. domain: (-∞, 0) U (0,∞) range: (-0, -3) U (-3,00)