Following is the tornado diagram for a project.

Which one is not correct about this tornado diagram?

All the correlations are between $-1\mathrm{.}0$ and $+1\mathrm{.}0.$

All the risks in this tornado diagram can have a negative impact on the project duration and should be

responded accordingly.

It shows the sensitivity of project duration to activities and risks.

The project duration is the most sensitive to the uncertainty of activity "manufacture reactors".