What does Mr. Kraler tell Mr. Frank that fills Mr. Frank with apprehension?

He thinks a man in the storeroom knows of the Secret Annex.
He informs Mr. Frank that he has been unable to get them food.
He tells Mr. Frank that he is suffering from ulcers that will not heal.
He declines Mr. Frank’s offer for a piece of Miep’s New Year’s cake.

From the Diary of Anne Frank. Will mark Brainliest!