Find the Domain and Range of the Function Graphed $( - \infty , \infty )$

Multiple Choice

Find the domain and range of the function graphed.
-

A) domain: $( - \infty , \infty )$ ; range: $\{ - 4 \}$
B) domain: $( - \infty , - 4 ) \cup ( - 4 , \infty )$ ; range: $( - \infty , \infty )$
C) domain: $( - \infty , \infty )$ ; range: $( - \infty , \infty )$
D) domain: $( - \infty , \infty )$ ; range: $( - \infty , - 4 ) \cup ( - 4 , \infty )$