5 Routes of administration (from fastest to slowest):
a) Smoking, Inhalation, Injection, Ingestion, Transdermal
b) Transdermal, Ingestion, Inhalation, Smoking, Injection
c) Injection, Smoking, Inhalation, Transdermal, Ingestion
d) Inhalation, Smoking, Injection, Transdermal, Ingestion

Q&A Platform for Education
Platform Explore for Education