$\backslash$table$[[$Task$,$Predecessor,Optimistic,Most Likely,Pessimistic$],[$A$,-,5,8,10],[$B$,$A$,7,10,12],[$C$,$B$,8,10,14],[$D$,-,11,15,18],[$E$,$D$,12,14,18]]$

Using Table $7\mathrm{.}14,$ what is the probability that the project will take $16$ or more weeks to complete?

$($A$)$ less than or equal to $20\%$

$($B$)$ greater than $30\%$

greater than $25\%$ but less than or equal to $30\%$

$($D$)$ greater than $20\%$ but less than or equal to $25\%$