Answer:
The answer is C. Highly structured threats
Explanation:
Highly structured threats are carried out with a very high level of precision. They have taken a lot of time and effort in identifying system vulnerabilities and strengths. These attackers could have massive financial support, which will enable them to hire highly technical personnel to effectively carry out the attack.
They target big financial institutions, corporate organizations, government agencies and other valuable units that can negatively affect the economy of the organization or nation at large.