what decision do hassan and his wife make to make raheem so happy? chapter 16

Initially, Hassan and Farzana refused to move to Baba's house, but then Rahim told him of Baba's death. Hassan cried all through the night and in the morning he agreed to move in with Rahim Khan. Despite Rahim Khan's protestations, Hassan and Farzana stayed in the servants' hut and did all the chores. Hassan also wore black for forty days in mourning for Baba.