The graph illustrates how the force on a compression spring varies with the change in the spring’s length. A spring of this type is fitted at each corner of a horizontal square plate. Each spring is arranged with its axis vertical. Together, the four springs carry a total load of $160\ \text{N}$. Calculate the total elastic potential energy stored in the four springs.
- A$0.048\ \text{J}$
- B$0.19\ \text{J}$
- C$0.38\ \text{J}$
- D$0.77\ \text{J}$