In The Diary of Anne Frank, Act I, why do the Franks agree to take in Mr. Dussel?

A. He has been their family's dentist for many years.
B. They think that he can bring them extra food and supplies.
C. They want to help someone else who is being persecuted by the Nazis.
D. He is a family friend from the days before they moved to Amsterdam.


help meeeeeeeeeeeeeeeeeeeeeeeeeh its for english