Determine Whether the Given Curve Is the Graph of a Function

Determine whether the given curve is the graph of a function of $x$ . If it is, state the domain and range of the function.

A) Function, domain: $( - \infty , - 2 ) \cup ( - 2 , \infty )$ , range:
$[ 2 , \infty )$
B) Function, domain: $( - \infty , - 2 ) \cup ( 2 , \infty )$ , range:
$[ - 2 , \infty )$
C) Function, domain: $( - \infty , 0 )$ , range:
$[ 2 , \infty )$
D) Function, domain: $( - \infty , - 2 ) \cup ( 0 , \infty )$ , range:
$[ - 2 , \infty )$
E) Not a function