This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Titration of the dose of a drug with the response can be done with which of the following routes of administration: \nSelect and explain. \nA. Sublingual, B. Transdermal, C. Inhalational, D. Subcutaneous', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - Titration of drug dosage can be done only with the inhalational route of administration among the given options.', 'role': 'assistant'}]