GMAT Verbal Section | Re: SC query

this question tests you on parallelism -

Note that this correlative conjunction - Both X and Y - requires X and Y to be perfectly parallel.

Let us look at the answer options -

A - "bothrooted in ...andDuke Ellington " - these two things are not in parallel.

B - "bothin the stride piano ... andDuke Ellington " - these two things are not in parallel.

C - "Jazz pianist and composer Thelonious Monk who produced a body of work rooted in the stride-piano tradition
...

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