Two pulses are traveling along a string in opposite directions towards each other as shown in the figure. If the wave velocity is 2 cm/s and the pulses are 6 cm apart, then after 1.5 sec, the energy stored in the string will be (Assume shapes of pulses to be similar)
 

• A

  kinetic energy only

• B

  potential energy only

• C

  kinetic energy as well as potential energy

• D

  none of these