A．Some brave teachers ran secret night schools.
B．Teachers who were found educating black children were forced to leave town.
C．The first African Free School was opened in New York City.
D．Several African free schools began receiving public funding.

A．Because cats always fascinate human beings.
B．Because cats are friendly and affectionate towards humans.
C．Because there is a popular belief that cats have nine lives.
D．Because cats lead their own lives and seldom become obedient like dogs are.