The graph of the function above is shown below.

Which of the following statements about f(x) is true?
A.
The function f(x) does not have an inverse because it never crosses the x-axis.

B.
The function f(x) has an inverse because it passes the horizontal line test.

C.
The function f(x) does not have an inverse because it does not pass the horizontal line test.

D.
The function f(x) has an inverse because it passes the vertical line test.