The new toilet paper company "Who Gives a Crap" recognized the opportunity to ramp up production and marketing during the second quarter of $2020.$ Task time estimates for the growth of their production line and marketing campaign are as follows: Activity Immediate Predecessor Time $($weeks$)$ A None $6$ B None $8$ C A $5$ D B$,$ C $6$ E B$,$ C $4$ F D $7$ G E$,$ F $4$ Develop an AON network for this problem. $1)$ What is the critical path? $2)$ What is the expected amount of time to get the new line up$-$and$-$running