estimation, round the number to the nearest integer. \begin{tabular}{|l|l|l|l|} \hline & Most Optimistic & Most likely & Most Pessimistic \\ \hline Task A & 2 & 6 & 18 \\ \hline Task B & 3 & 6 & 16 \\ \hline Task C & 3 & 10 & 13 \\ \hline \end{tabular}