abigail’s family can be an advocate by first learning about her symptoms and educate themselves on what she may be struggling with. according to the description, it sounds like her grandmother may be struggling from some form of dementia. they can also attend her appointments with her and speak up when she can’t.
My best guess would be D. many studies have linked cardiorespiratory exercise to the lowering of blood pressure. (Many studies have also linked going vegan to the lowering of blood pressure, too :)