Which is the best topic of the passage

A．hopes that there will be some other stores like this throughout the country
B．is father of a child
C．thinks it important to make electric toys well
D．often goes to this store to get toys for his child

A．a number of large types of children's toys
B．a number of different sorts of children's toys
C．many children's toys for grown--ups
D．most of the children's toys of all kinds