A

Step 1: When shearing force is applied on a body, it deforms the material, and elastic potential energy is stored in the body due to this deformation.
Step 2: Upon removing the shearing force, the body tends to return to its original shape.
Step 3: As the body returns to its original configuration, the elastic potential energy is released, which typically gets converted into kinetic energy of the particles or the structure moving back to its equilibrium position.
Step 4: In an ideal scenario (without any energy loss), all stored potential energy would convert into kinetic energy.
Conclusion: Therefore, the correct option is A: Converts into kinetic energy.