I was thinking about my photo for ABC Wednesday tomorrow when I had a brilliant idea . But it involved me taking lots of photos of CCTV cameras . And I started worrying that if I did that , the police might come knocking on my door and confiscate my computer .

Question: Why was the narrator worried that the police might knock on his door ?
Answer: Because his behavior looked suspicious .Because his fingerprints were all over the camera .Because he had been caught on CCTV .Because he had stolen a computer .