A good thing that would help is a pill organisation box that has the days of the week and the times to take the medications. Another thing is a chart to hang on the wall of the patients room with what medications to take and when.
It would be D cause of the semi cold temperature would not freeze but thicken the liquid.
BMI = 125 / 72^2 x 703 = 125/5184 x 703= .024 x 703= 16.87
He's underweight so is possible risk of malnutrition