Which of the following statement is correct about the network diagram?

A. The events are represented graphically by circles or nodes at the beginning and the end of activity by arrows.

B. The tail end of the arrow represents the start of an activity.

C. The head of the arrow represents the end of an activity.

D. All of the above

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
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