The noun form of the verb "to denounce" is B.) DENUNCIATION.
Denunciation is a noun that means the public act of denouncing; open condemnation, or censure.
Other nouns connected to the verb "to denounce" are denouncement and denouncer.
Choice A of the above question is wrongly spelled, so it is not the noun of the verb.
1: star
2: measure
There are your answers
Is there a poem that goes with this?
a simile is the comparison of two things using the terms like or as. hopefully that helps.