Armand Aubigny fell in love with the girl immediately and instantly. Option B is correct.
In Kate Chopin’s short story, “Desiree’s Baby,” Armand Aubigny is the father of the titular child and the husband of Desiree. He is the owner of a plantation called L’Abri that he inherited from his father. His role in the short story focuses on falling in love with Desiree, the adopted daughter of the Valmondés, another well-known creole family.