$\backslash$table$[[$Activity$,$Immediate Predecessor,Time $($weeks$)],[$A$,$None,$6],[$B$,$A$,4],[$C$,$A$,7],[$D$,$C$,2],[$E$,$B$,$ D$,4],[$F$,$D$,3],[$G$,$E$,$ F$,7]]$

a$)$ Draw network diagram.

b$)$ How many possible paths are there in the project?

c$)$ Which path is the critical path?

d$)$ How many weeks of slack does activity B$?$

e$)$ How many weeks of slack does activity C$?$