参考答案

正确答案：D
解析：辨别题。讲座中提到餐桌礼仪的目的在于减少冲突，彼此感到舒服和谐并能分享美味：...actually manners are really about the reduction of violence. There's a lot in there about reducing violence...when you look at real table manners they're about people feeling comfortable with each other, sharing food around a table. 这里只有选项D没有提到，所以答案为D。