Give the Domain and Range of the Relation $( - \infty , 0 ] \cup [ 0 , \infty )$

Multiple Choice

Give the domain and range of the relation.
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A) domain: $( - \infty , 0 ] \cup [ 0 , \infty )$ ; range: $( - \infty , 4 ] \cup [ 4 , \infty )$
B) domain: $( - \infty , 4 ) \cup ( 4 , \infty )$ ; range: $( - \infty , 0 ) \cup ( 0 , \infty )$
C) domain: $( - \infty , \infty )$ ; range: $( - \infty , \infty )$
D) domain: $( - \infty , 0 ) \cup ( 0 , \infty )$ ; range: $( - \infty , 4 ) \cup ( 4 , \infty )$