Davy Jones owns and operates a chain of grocery stores called “Groceries for less”He is considering a new computer system for accounting and inventory control. Alocal computer sales office sent the following information about the computer system installation.ActivityPredecessorDuration (wks)a. select the computer model-6b. design input/output systema8c. design monitoring systema8d. assemble computer hardwareb20e. develop the main programsb18f. develop input/output routinesc10g. create databasee8h. intall systemd,f2I. test and implementg,h7a. Construct a network for this problemb. identify the critical path by computing the ET, LT, TS and FS valuesc. Determine project completion time.