$-\mathrm{.}3\mathrm{.}16$ The Rover $6$ is a new custom$-$designed sports car. An analysis of the task of bui

e Rover $6$ reveals the following list of relevant activities, their immediate predecessors, and their duration.

$\backslash$table$[[$ACTIVITY$,$DESCRIPTION,$\backslash$table$[[$TIME$],[($DAYS$)]],\backslash$table$[[$IMMEDIATE$],[$PREDECESSOR$($S$)]]],[$A$,$Start,$0,],[$B$,$Design,$8,$A$],[$C$,$Order special accessories,$0,1,$B$],[$D$,$Build frame,$1,$B$],[$E$,$Build doors,$1,$B$],[$F$,\backslash$table$[[$Attach axles, wheels, gas$],[$tank$]],1,$D$],[$G$,$Build body shell,$2,$B$],[H,\backslash$table$[[$Build transmission and$],[$drivetrain$]],3^3,$B$],[1,$Fit doors to body shell,$1,G,E$