I'm a thief

If you encounter a thief, what would you do? A witness in Guangxi decided to play a trick on the thief. A photo gripped Internet users as it caught a thief stealing while a piece of paper reading, "I'm a thief", was pasted to his back. Apparently, the thief did not know the note was on his back. Many netizens expressed anger about the audacious stealing, as the background of the photo shows that it happened at a bus stop just opposite a police station.

Where did the thieving happen?

A. On a bus

B. At a subway stop

C. Near a police station

（中國日報網英語點津 許晶晶 編輯）