Re-read lines 291-306. Why is Mrs. Frank concerned about the legality of the ration books?

( please help thank you <3)

Mrs. Frank never does anything illegal and is not used to their new life.

Explanation:

Mrs. Frank is concerned about the legality of the ration books because Mr, Kraler try to make a distinction between purchasing ration books illegally and assisting the many hiding in Amsterdam who are hiding and hungry in which Mrs Frank told Mr. Kraler that this isn’t the black market by stating that " This is what we call the white market . . . helping all of the hundreds and hundreds who are hiding out in Amsterdam" Which simply shows that Mrs. Frank never does anything illegal and is not used to their new life.