A project to remodel a bathroom has the following activities. Build in Excel showing prdecessors (20 points).

Activity   Duration   Predecessors

A          2 months—

B         4 months—

C          4 months—

D         1 month               A

E          5 months             B

F         2 months            B, C

G        1 month                C

H        3 months          E, F, G

I         2 months            D, E

J         2 months            G, H