This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Other topics and Adverse effects, Subject name: Anatomy
Titration of the dose of a drug with the response can be done with which of the following routes of Administration 
Select and explain. 
A. Sublingual, B. Transdermal, C. Inhalation, D. Subcutaneous
C: Inhalation
Answer: C: Inhalation 
Explanation: Ref-KDT 6/e p9 Inhalation anaesthetic agents like hello than are used in the clinical practice by titration of dose with response