Why does Mr Kramer agree to pay Carl extra money in the dairy of Anne frank?

In "The Diary of Anne Frank," Mr. Kramer agrees to pay Carl extra money to ensure that the families in hiding receive protection and support. He recognizes that Carl poses a potential threat to their safety due to his knowledge of their situation. By offering him more money, Mr. Kramer aims to secure his silence and maintain the families' safety while they remain in hiding from the Nazis. This decision reflects the desperation and moral dilemmas faced by those during that perilous time.