The correct option is D None of the above
Diarrhoea is a disease caused by the virus like norovirus and bacteria like clostridium, salmonella. It is characterised by the frequent passing of loose or watery stools. Common symptoms of diarrhoea include skin tenting, abdominal pain, nausea, dehydration, cramping, fever and bloody stools. Many cases of diarrhea are spread from person-to-person as well as through contaminated water. Hence option D is correct.