听力原文： For some educators, there is nothing wrong with fun and games. A group called th

e Education Arcade recently held a conference in Los Angeles to discuss the future of educational games. The Education Arcade brings together international game designers, publishers, teachers and policymakers. They say they want to lead change in the way the world learns through computer and video games. The group .recently announced that a "Games for Learning" statement will be placed on some products. This should begin to-appear in American Stores in about six months. The goal is to help people find games that are fun but will also teach. The Education Arcade says it also wants to get businesses to produce more games that teach.

The Entertainment Software Association says fifty percent of all Americans aging six and older play computer and video games. Sales of such games in the United States grew eight percent last year, to seven-thousand-million dollars. The industry group says the average age of a game player is twenty-nine years old. And it says thirty nine percent are women.

Who did NOT attend the conference on educational games？

A．Game designers.

B．Publishers.

C．Government officials.

D．Teachers.