Answer:
Stomach upset.
Stomach pain.
Blood in the stool (which may be a sign of an ulcer that developed from eating nonfood items)
Bowel problems (such as constipation or diarrhea )
Explanation:
D. sleep habits
that is the only one that is not based on outside factors
B. Vitamin D.
This vitamin is known for strengthening bones. Osteoporosis is the weakening of bones as a person ages.
I think it's one third, but I'm not entirely sure.
Hope I helped to some extent!