Answer:
Option-I is correct.
Explanation:
This applies to the capacity for the device that carries on to work against disruption while some or many of certain elements malfunction. This improves the capacity of the Network for errors and thus allows the Network to meet further computers as well as users.
Thus, every box reflects that computer connecting to that of the server, every line reflects the specific link among both systems.
So, the following are the reason that describes the other option is not relevant to the scenario.