Which calculation below gives the displacement -x a. [Springlength]-[mass] b [Original length] -[spring length] [spring length] -[original length] d. [Mass]- [spring length]

The correct calculation for displacement -x is:c. Displacement is the difference between the final position and the initial position. In this case, the original length represents the initial position, and the spring length represents the final position. Therefore, the displacement -x is calculated by subtracting the original length from the spring length.