Final answer:
In the story 'Only Daughter', the author's father felt proud of her work when he read her story.
Step-by-step explanation:
In the story 'Only Daughter' by Sandra Cisneros, when the author's father read her story at the end, he felt proud of her work. This is evident from the text when the author reflects on her journey as a writer and mentions that everything she has ever written has been for her father to win his approval. The father's pride in her work shows that he recognizes and appreciates her talent and achievements as a writer.