A penetration tester was conducting a penetration test and discovered the network traffic was no longer reaching the client's IP address. The tester later discovered the SOC had used sinkholing on the penetration tester's IP address.
Which of the following MOST likely describes what happened?

A. The penetration tester was testing the wrong assets.
B. The planning process failed to ensure all teams were notified.
C. The client was not ready for the assessment to start.
D. The penetration tester had incorrect contact information.