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: $( - \infty , 3 ]$
B) domain: $( - \infty , - 1 ]$ ; range: $( - \infty , 3 ]$
C) domain: $( - \infty , - 1 )$ or $( - 1 , \infty )$ ; range: $( - \infty , 3 )$ or $( 3 , \infty )$
D) domain: $( - \infty , \infty )$ ; range: $( - \infty , \infty )$