According to the arrangement and combination, the total score of all games should be 20 points. After deducting 12 points, there are 8 points left.
Germany tied for fourth, indicating that both teams won a game (if it is impossible to lose, all teams won a game, Germany tied, so both teams won a game, each with 2 points). Finally, C got 20- 12-2-2=4 points.