The net displacement of the particle between 0 seconds and 80 seconds is 0 meters.
The graph shows the velocity of the particle over time. The area between the curve and the x-axis represents the displacement of the particle.
From the graph, we can see that the particle moves forward for some time, then comes back to its starting point. This means that the net displacement is 0 meters.
Therefore, the answer is E. 0 meters.