The correct answer is option D. Calcium.
Low bone density can be due to a lack of calcium thus requiring supplementation.
A because none of the others would work
Many people with type 2 diabetes also have nonalcoholic fatty liver disease (NAFLD). Losing weight if you are overweight or obese can improve NAFLD. Diabetes is also linked to other health problems such as sleep apnea, depression, some types of cancer, and dementia. Hope it helps! ;)