Which of the Following Was NOT Identified as One of the Main

Which of the following was NOT identified as one of the main issues associated with cyberespionage?

A) Malicious software can be developed and used by actors with limited and large resources and without developing specific tools.
B) Hackers across the Internet share tools and techniques, making it very difficult to distinguish between hackers.
C) Nation-states and crime organizations never use independent hackers to avoid being associated with a cyberattack.
D) Actors route Internet traffic through different countries, making it appear to come from another country.