The correct option is A Skin tenting and abdominal pain
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. Hence option A is correct.