Give the Domain and Range of the Relation $$\{ ( 3,3 ) , ( - 2 , - 2 ) , ( - 7 , - 7 ) , ( 4,4 ) \}$$

Multiple Choice

Give the domain and range of the relation.
- $$\{ ( 3,3 ) , ( - 2 , - 2 ) , ( - 7 , - 7 ) , ( 4,4 ) \}$$

A) domain: $\{ 3,4 \}$ ; range: $\{ - 7 , - 2 \}$
B) domain: $\{ - 7 , - 2 \}$ ; range: $\{ 3,4 \}$
C) None of these
D) domain: $\{ - 7 , - 2,3,4 \}$ ; range: $\{ - 7 , - 2,3,4 \}$