Match the following:
| Name | Description |
| A: Modem | I: A network adaptor is used to set up a wired network. |
| B: Ethernet card | II: Connects multiple computers |
| C: Repeater | III: The device used for conversion between electric signals and digital bits |
| D: Switch | IV: Regenerate the signals |
1
A → II, B → II, C → IV, D → II
2
A → III, B → I, C → IV, D → II
3
A → III, B → II, C → IV, D → I
4
A → I, B → III, C → II, D → IV