Ayben Is Responsible for Managing an Advertising and Promotion Project

Ayben is responsible for managing an advertising and promotion project using Program Evaluation and Review Technique (PERT) with the following activities (times are given in weeks) .
$\begin{array}{|c|c|c|c|c|c|c|}\hline\text { Project } & \text { Immediate } & \text { Optimistic } & \text { Most Likely } & \text { Pessimistic } & \text { Expected } & \text { Activity } \\\hline \text { Activity } & \text { Predecessor(s) } & \text { Time } & \text { Time } & \text { Time } & \text { Time } & \text { Variance } \\\hline\\\hline \text { A } & \text { none } & 2 & 5 & 14 \\\hline \text { B } & \text { none } & 8 & 11 & 14 \\\hline \text { C } & \text { A } & 5 & 7 & 9 \\\hline \text { D } & \text { A } & 6 & 9 & 12 \\\hline \text { E } & \text { B, C, D } & 1 & 3 & 5 \\\hline\end{array}$ Draw the project network here. BLANK SPACES
$\text { PERT Exam Question \#52 to \#55 }$
$\begin{array}{cccccc}\text { Activity } & \text { OT } & \text { MLT } & \text { PT } & \text { ET } & \text { AV } \\\text { A } & 2 & 5 & 14 & 6.00 & 4.00 \\\text { B } & 8 & 11 & 14 & 11.00 & 1.00 \\\text { C } & 5 & 7 & 9 & 7.00 & 0.44 \\\text { D } & 6 & 9 & 12 & 9.00 & 1.00 \\\text { F } & 1 & 3 & 5 & 3.00 & 0.44\end{array}$
-Using the table for the advertising and promotion project, if the expected time (not the most likely time) for activity B is changed to 18 weeks, by how many weeks will the project's expected completion time increase?

A) It will not change.
B) It will increase by 1 week.
C) It will increase by 2 weeks.
D) It will increase by 3 weeks.