Answer: These fairy rings are probably poisonous mushrooms left by fairies last night
Blank Verse Form poem uses both iambic pentameter and blank verse.Blank verse is unrhymed verse in iambic pentameter lines.This means that rhythm is biased towards a pattern in which an unstressed syllable is followed by a stressed one ( iambic ) and that each normal line has ten syllables ,five of them stressed(pentameter).
the correct answer is c.) written or composed.