Problem: Joshua takes care of his elderly mother Judy who has been found by a court to be incompetent to handle her own affairs due to dementia. He wants her to register with a medical alert service for her protection. James, Joshua's spouse, is the individual who calls the service provider and completes the application form. Who should the service provider ensure does NOT sign the contract for the service? Joshua, who has power of attorney for his mother in the event that she became mentally incapacitated. Judy, who is the individual using the service. James, who frequently helps to care for Judy but who thinks the service is an unnecessary expense. All of the above