This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'Feature of early dumping syndrome is \nSelect and explain. \nA. Occurs immediately after meals, B. Relieved with food, C. Aggravated by exercise, D. Symptoms are tremors, faintness, prostration', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (A) Occurs immediately after meals FEATURES OF EARLY AND LATE DUMPING EarlyLate* Incidence5-10%5%* Relation to mealsAlmost immediateSecond hour after meal* Durations of attack30-40 minutes30-40 minutes* ReliefLying downFood* Aggravated byMore foodExercise* Precipitating factorFood, especiallyAs early dumping carbohydrate-rich & wet* Major symptomsEpigastric fullness, sweating, light- headedness, tachycardiaTremor, faintness, prostration, colic, sometimes diarrhoea', 'role': 'assistant'}]