单项选择题
A．When it has a large number of fans. B．When it plays at home. C．When it has many international stars playing for it. D．When the fans cheer enthusiastically for it.
A．To find out whether they take music lessons in their spare time. B．To find out whether they can name four different musical instruments. C．To find out whether they enjoy playing musical instruments in school. D．To find out whether they differ in their preference for musical instruments.