I think the insurance that they should purchase is: C. supplemental insurance
Dental insurance is not covered by Medicare, so both HMO and Point of service is out of the option.
I think supplemental insurance will be the best option because it is the type of insurance sold by private companies that specifically cover the policies that are not covered by normal Medicare.
There are no choices. however, an example of a person with integrity could be doing the right thing when no one is watching and staying true to yourself.
Lack of sleep would definitely affect her overall performance and mental well-being sleep is like recharging the brain you need rest to function properly at important places such as work, school, sports, ETC