If One ChangeListener Is Listening for Three Different JSlider Objects

Multiple Choice

If one ChangeListener is listening for three different JSlider objects, how can we determine which of the three sliders caused the event when the code enters the stateChanged method?

A) It is not possible.
B) We can compare the sliders using the getSource method.
C) We can call the getValueIsAdjusting method.
D) We can compare the sliders using the getSliderSource method.