A project being analyzed by PERT has $30$ activities, $11$ of which are on the critical path. If the estimated time along the critical path is $215$ days with a project variance of $100,$ what is the probability that the project will take $225$ days or more to complete?

A$)$ Near zero

B$)0\mathrm{.}13$

C$)0\mathrm{.}16$

$($D$)0\mathrm{.}84$

E$)1\mathrm{.}70$