Give the Domain and Range of the Relation $( - \infty , \infty )$

Multiple Choice

Give the domain and range of the relation.
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A) domain: $( - \infty , \infty )$ ; range: $( - \infty , - 2 ) \cup ( - 2 , \infty )$
B) domain: $( - \infty , \infty )$ ; range: $( - \infty , \infty )$
C) domain: $\{ - 2 \}$ ; range: $( - \infty , \infty )$
D) domain: $( - \infty , \infty )$ ; range: $\{ - 2 \}$