<prompt> Etoposide acts by -Inhibition of dihydrofolateInhibition of topoisomeraseInhibition of purine synthesisInhibition of protein synthesis  <response>: Ans. is b i.e., Inhibition of topoisomerase o Etoposide and teniposide are natural anticancer drugs. o They act by inhibiting topoisomerase II that leads to DNA strand breakage. 