The answer is D because when you get a head injury your most likely to have a concussion from the impact which will cause you to loss consciousness and have blurred vision and dizziness.
Answer:
symptoms are :
A persistent change in your bowel habits, including diarrhea or constipation or a change in the consistency of your stool.
Rectal bleeding or blood in your stool.
Persistent abdominal discomfort, such as cramps, gas or pain.
A feeling that your bowel doesn't empty completely.
Weakness or fatigue
Unexplained weight loss
Well it can be preventing other type of illness
