The county government has decided to redo the street you live on and plans to block the street off which causes you and your neighbor's considerable inconvenience. 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? answer

the expected duration of the project is 30 + 22 + 16 = 68 days.
path a-b-c-h is the critical path.
path a-d-e-h has the most slack time.
path a-f-g-h is the critical path.