Considering the four directed graphs in the following figure:
Which of them are strongly connected and have a diameter 4:
- III and IV
- only III
- only II
- I and II
- none of above
Instructions for question creators: (1) do not include the answer; (2) the last alternative must be: "E, None of the above"; (3) at the end, add "Original idea by: " and your name.
Consider a pathogen spreading on a highly heterogeneous contact network whose degree distribution follows a power law with exponent between ...
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