The equation of the propagating wave is y = 25 sin (20t + 5x), where y is displacement. Which of the following statements is not true?

        

• A

   The amplitude of the water is 25 units 

• B

   The wave is propagating in positive x-direction

• C

   The velocity of the wave is 4 units     

• D

  The maximum velocity of the particles is 500 units