For each of the following activities, determine the maximum delay in the starting time relative to its earliest start time that will allow all the immediately succeeding activities to be scheduled anywhere between their earliest and latest completion times.

(a) TF = 20, FF = 20, D = 8

(b) TF = 8, FF = 3, D = -2

(c) TF = 5, FF = 0, D = 3