A man has died. He made a will several years ago, leaving a number of legacies, including a gift to a woman who was also appointed as his sole e ecutor. The woman was one of the two witnesses to the e ecution of the will.Which of the following ly states the position with regard to the will's validity?
选项：

A:The will is invalid as the woman cannot witness the will if she is also a beneficiary.
B:The will is invalid as the woman cannot witness the will if she is an e ecutri .
C:The will is valid but both the gift to the woman and her appointment as e ecutri fail as she has witnessed the will.
D:The will is valid although the woman's appointment as e ecutri fails as she has witnessed the will.
E:The will is valid but the gift to the woman fails as she witnessed the will.