<prompt> Irreversible aromatase inhibitor -AnastrazoleExmestaneLetrozoleVorozole  <response>: Ans. is b i.e., Exmestane Aromatase inhibitors are of two types:o Type I steroidal aromatase inhibitor - They cause irreversible inhibition of aromatase, e.g. Exmestane, formestane.o Type II non-steroidal aromatase inhibitor - They cause reversible inhibition of aromatasxe e.g. Anastrazole, Letrozole, vorozale. 