题目内容：

听下面一段较长对话，回答以下小题。

1.What does the woman compare the toy to?

A. A medicine.    B. A ball.    C. A hand.

2.What age group is the toy popular with?

A. Children.    B. Teenagers.    C. All age groups.

3.Why do some teachers dislike the toy?

A. It leads to theft.    B. It causes arguments in class.    C. It makes students lose focus.

4.Who is the actual inventor of the toy?

A. An academic researcher.    B. An IT professional.    C. A chemical engineer.