Penn is looking at a recent report from a network monitoring tool that makes him suspect a cyber incident is occurring within the network. Which of the following might be an indicator that would make him suspicious?

a$.$ Small volumes of traffic to a new internal application server

b$.$ Large volumes of internal traffic during overnight hours every night

c$.$ Increased peer$-$to$-$peer traffic between internal clients

d$.$ Increased traffic to the website of the primary operating system his company uses