Answer:
The answer would be B, Increasing Vitamin D intake.
Step-by-step explanation:
Vitamin D supplements are prescribed when the levels of Vitamin D are low in the body or there are any signs of fatigue, general weakness, weaken bones, lethargic, muscle pain, etc. But Arnold has no such signs that would trigger the doctor to prescribe him with increased intake of Vitamin D. According to his reports, he should start using more soluble fiber in his food, He should increase his physical activities and should decrease the use of saturated fats to avoid high blood pressure, cholesterol levels and achieve healthy weight range.