$16.(12$ points$)$ Three activities are candidates for crashing on a project network for a large computer installation $($all are, of course, critical$).$ Activity details are in the following table: Activity Normal Time $($days$)$Crash Time $($days$)$Normal CostCrash CostImmediate PredecessorsA $76$ $$6,000$ $$6,600-$B $42$ $$1,200$ $$3,000$ AC $119$ $$4,000$ $$6,000$ Ba$)(8$ points$)$ What action would you take to reduce the critical path by $1$ day?