This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Most variable absorption is seen with which route \nSelect and explain. \nA. oral, B. Intramuscular, C. Intravenous, D. Per rectal', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref-Goodman and gillman 12th/20 Oral route has maximum variability in absorption', 'role': 'assistant'}]