Answer:
A. replace the network cable
Step-by-step explanation:
Based on the information provided within the question it can be said that in this scenario the best option would be to replace the network cable. The network cable refers to the Ethernet cable that is connected to the individuals personal computer. This cable being faulty is most likely the reason as too why the individual is not able to connect. Since it is displaying that signals return too early it means that there is most likely information being lost in transit.