A new client comes to see you to discuss the estate of her late grandfather. She tells you that three years earlier she had quit her job to live with her grandfather to help support him. Shortly afterwards, her grandfather told the woman that he would leave everything he owned to her by his will. She explains to you that she told her grandfather that she was happy to look after him and would do anything for him in any event, as she loved him very much. The woman's grandfather died four months ago and his will did not leave anything to the woman. His estate included money held in current and savings accounts, various shares, and some small personal belongings.Is the woman able to make a claim on the basis of her grandfather's words?
选项：

A: Yes, because promissory estoppel gives rights to enforce promises made by a testator
B: No, because proprietary estoppel is only available in respect of land
C: No, because she did not rely on her grandfather's promise to her detriment
D: No, because her grandfather did not make a clear promise
E: Yes, because her grandfather made a clear promise upon which she relied to her detriment