c: 90 degree angle would be better for your body!
that is false. you should keep your back straight, your chest out and shoulders back.
medicine- it can control symptoms they might be having
in home care- if they can't remember to take medication having someone with them to them remember would be great. if they fall they can have someone around as well.
physical therapy- if they have limited movement it can them
senior living- they can be in a place made for the complications they might have and more wheelchair accessible and safe for seniors.