In each of the following questions, an idiom/phrase has been used in three different sentences. Choose the option corresponding to the sentence(s) in which the idiom/phrase is used grammatically and contextually correct. A GREEK HORN
I. The archaeological excavation team uncovered an ancient marble artifact that the lead curator confidently identified as a greek horn used during classical Dionysian festivals.
II. Trying to extract a cohesive, legally binding confession from the highly manipulative corporate fraud suspect proved to be a total greek horn for the prosecution.
III. The reclusive mathematician spent forty years in isolation trying to solve the complex equation, only to realize his foundational theorem was based on a greek horn.