For what reason does shakespeare commonly choose to write in iambic pentameter a. it marks his plays as being written by him b. it copies the sounds of natural human speech c. it establishes the play as a sophisticated worked of art d. the law during his era requires that plays be written in this meter

An iambic pentameter is a metric line where one stressed syllable is followed by one unstressed syllable. (the pattern is something like this:Λ_Λ_Λ_ where Λ stands for the stressed syllable)

Shakespeare is an author who used it extensively in his poetry and it is believed that he actually established the use of iambic pentameter . He chooses to write in it because it copies the sounds of natural human speech, even the rhythm of a human heartbeat.

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i'm thinking it would be when compound subjects are joined by or, nor,either-or, neither-nor.