2022-111

Select the alternative that lists exactly the true sentences below.

1. The BA model generates networks with shorter average distances than random networks of similar size.
2. The random network model differs to BA model in how network size evolves. In the BA model, network size grows more rapidly than in the random network model.
3. The BA model has hub nodes with degree many times larger than the average. This is not true for random networks.

Options:

1. Only 1;
   
2. Only 3;
3. 1 and 2;
   
4. 1 and 3;
5. None of the above.

Original idea by: Filipe Maciel