(Quiz week 8, oct 6th) Suppose you are building a Barabási-Albert Model network at time $t$. Then, at time $t+1$, you are adding a new node U, that will attach to node C, given C's probability 0.75. Knowing that, assest the networks 1, 2, 3 and 4, bellow:

The network the meets the correct configuration at time $t$ to receive U at time $t+1$ is:

1. 1.
2. 2.
3. 3.
4. 4.
5. None of the above

Original idea by: Fábio Assunção.