Tibet: Yungchen Lhamo (1963-)

I choose No.4.
No4 is "Many Internet sites dealing with Tibet are blocked by the Chinese government. What can you find out about Internet use in China?"
China is blocking Internet sites which treat about  Ferocity about Chinese police, What is involved to Taipei and Tibetan independence movement.
what China is blocking Internet sitesare called Great Firewall
But it is not exactly .
For example , you can see the similar site.

I think it is difficult to block everything sites which Chinese goverment think bad.
It is like a Cat-and-mouse game.