Answer: Option A) Intramuscular
Explanation:
A drug is administered directly inside the muscle by means of syringe is most rapidly absorped and stimulating response due to:
- its active form is immediately transported by blood to the target cell where it exerts its function, thus shortening time of travel
- it avoids digestion that could have destroyed some of its potent functional groups
Thus, 'intramuscular' gives the most rapid rate of absorption and drug response
