Which of these many variables affects the network's operation?

How well does a network function when the following three conditions are met? Please, give us a brief summary.

Three students, including A, B, and C, share the same apartment. They have been assigned with 3 IP addresses, respectively. However, there is only one Ethernet cable outlet in the apartment. Therefore, they decided to buy a device to connect three computers to the outlet. Suppose none of them can use port mirroring if the device is a switch, please identify all statements that are true below.    Question 11 options:   If the device is a hub, A can sniff B's and C's packets since the hub will broadcast all packets to all ports.    If the device is a switch, A cannot sniff B's and C's packets without launching any attack.   If the device is a switch, A can sniff B's and C's packets if A can launch ARP spoofing attacks against B and C successfully.    None of above is correct.

Which features appear often in network diagrams?