Refer to the following network diagram. The activities (A,B,C…F) are shown in the circles and the duration for each activity is shown in weeks (Wk) next to the circles. What is the float for activity ‘C’?单项选择题

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In the forward pass of the Two Pass Method, the Earliest Start Time (EST) of an activity equals the maximum of the Earliest Completion Times (ECTs) of all its immediate predecessors.

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