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18. Assume you have project with the following information : Activity A (Duration = 1, Predecessor = None), Activity B (Duration = 2, Predecessor = A), Activity C (Duration = 2, Predecessor = B). Activity D (Duration = 4, Predecessor = B), Activity E (Duration = 1, Predecessor = B), Activity F (Duration = 5, Predecessor = C, D, E), the late finish of Activity Cis: * 5 (2 Points) 6 They none of the others