None of the above. People don't know the difference between an SEC suspension and a DTC suspension. Brokers have the option of using their own judgement in suspending trading when the DTC places a Global Lock on something. Because people generally know nothing about the DTC, they will automatically assume the SEC caused the halt in trading. Nobody purposefully spread a rumor for any ulterior motive.
Personally, I'm glad this happened. It will put a stop to whatever manipulation was going on, that kept the price down.