The County Government Has Decided to Redo the Street and Plans

The county government has decided to redo the street and plans to block the street off which causes considerable inconvenience to people. The project has three parallel paths defined as follows: (i) path A-B-C-H to install street lights and electrical wiring that takes 16 days, (ii) path A-D-E-H to install sidewalks with handicap capabilities that takes 22 days, and (iii) path A-F-G-H to repave the street including storm drains that takes 30 days. Which one of the following statements is TRUE?

A) The expected duration of the project is 30 + 22 + 16 = 68 days.
B) Path A-B-C-H is the critical path.
C) Path A-D-E-H has the largest slack time.
D) Path A-F-G-H is the critical path.