One end of a spring is fastened to a fixed point. A mass is then suspended from the spring’s other end. When the system is in equilibrium, the spring has an extension $x$. The graph shows how the tension in the spring varies with its extension. Which of the following statements is correct?
- AArea SPR represents the energy stored in the spring which cannot be recovered.
- BArea SPQR represents the energy stored in the spring which can be recovered.
- CArea SPQ represents the loss of gravitational potential energy of the mass due to the extension of the spring.
- DArea SQR represents the elastic potential energy stored in the spring.