You are dealing with the estate of a deceased man who made his will last year. The will includes the following gifts:"My house to my daughter absolutely in confidence that she will hold it for herself and do right by my other children as she sees fit." "Some of my shares to my trustees from which they must ensure that my brother is able to maintain a reasonable standard of living." "£1 , to my trustees to hold on trust for my friends ."What is the validity of these provisions?
选项：

A: All of the provisions are valid
B: None of the provisions is validO
C: Only the trust of the 釭 , is valid
D: Only the trust of the property is valid＿
E: Only the trust of the shares is valid