PM$.56$ Massmart has put together a team to improve it's supply chain design. The team has broken the project down into lettered activities and their durations in weeks:

$\backslash$table$[[$Activity$,$Duration $($weeks$),$Immediate Predecessor$($s$)],[$A$,7,-],[$B$,17,-],[$C$,21,-],[$D$,6,$B$],[$E$,2,$A$],[$F$,11,$E$],[$G$,5,$C$,$D$],[$H$,9,]]$

What is the duration of the project $($in weeks$)?$

weeks

What is the project's critical path?

AEF

$BDH$

BDG

$CH$

What is the latest start week for activity B$?$