Answer:
B.On the day of Granny Weatherall's death
Step-by-step explanation:
The whole narrative of the short story "The Jilting of Granny Weatherall" happens the day Granny Weatherall is severely ill, she is so sick that she feels that this is her last day of life. She spends the whole story lying in her bed reminding of several things from his past and reflecting on various aspects of her life. At the end of the story she dies, sad because she believes God has rejected her.