A 45-year-old man presents with abdominal pain and watery diarrhoea for 3 days after returning from overseas. He is afebrile, haemodynamically stable and tolerating fluids. There is no blood in the stool. What is the most appropriate management?ARoutine empirical broad-spectrum antibiotics for all casesBEmpirical loperamide and oral rehydration without antibioticsCImmediate stool culture and admission for intravenous antibioticsDOral metronidazole for 14 daysELong-term probiotic use onlyCheck my answer