Conider the project schedule shown in the table below. Times are given in days. Activity Predecessor(s) Duration ES EF LS LF Slack A 4 0 4 0 4 0 B A 10 10 C A 1 4 8 D B 4 10 14 10 0 E B, C 3 10 13 10 13 0 F C 5 8 13 3 G E, F 1 13 14 13 0 8 What is the duration of activity B? The duration of activity B is What is the project duration? The project duration is days. days. What are the critical activities? (Enter your answer as a sequence of capital letters with no dashes or spaces.) The critical activities are Consider the following crash data for a project. Times are given in weeks. NORMAL CRASH NORMAL ACTIVITY TIME TIME COST ($) CRASH COST ($) A 4 4 7,700 7,700 B 5 2 1,200 3,300 C 13 5 3,400 4,200 D 3 1 3,400 3,800 E 10 2 5,700 7,300 F 8 4 2,600 3,000 How many week(s) of crashing are available for activity C in the table above? Activity C has weeks of crashing available. What will be the cost of activity C if it is completed in 7 weeks? The cost will be $.