Married couple, Harold and Mary are in their late 70s and don't have any children. Harold suffers from dementia and has to move into a nursing home. What suggestions would you make to Mary in terms of her estate planning? Select one: a. She could ensure that he signs an enduring POA to her before he completely loses mental capacity b. All of the other listed options are correct c. She could include a testamentary trust in her will to look after Harold if she predeceases him d. She could make sure that Harold has a general POA in effect in case anything happens to him