The Graph of a Function F Is Given $x$ Is $f ( x ) = 0$

Multiple Choice

The graph of a function f is given. Use the graph to answer the question.
-For what numbers $x$ is $f ( x ) = 0$ ?

A) $- 15$
B) $( - 25 , - 15 ) , ( 17.5,25 )$
C) $( - 15,17.5 )$
D) $- 15,17.5,25$