Which of the following best describes the graph below?
ļ ďd bd
5 4 3 2 1
1 2 3
4
&
-1
2.
2
-3
O A. It is not a function.
B. It is a many-to-one function.
C. It is a function, but it is not one-to-one.
D. It is a one-to-one function,