Identify the Domain and Range of a Function from Its $( - \infty , \infty )$

Identify the Domain and Range of a Function from Its Graph
Use the graph to determine the function's domain and range.
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A) domain: $( - \infty , \infty )$
range: $[ - 1 , \infty )$
B) domain: $[ - 2 , \infty )$
range: $[ - 1 , \infty )$
C) domain: $( - \infty , \infty )$
range: $( - \infty , \infty )$
D) domain: $( - \infty , - 2 )$ or $( - 2 , \infty )$
range: $( - \infty , - 1 )$ or $( - 1 , \infty )$