GMAT Sentence Correction (SC) | Re: Modern critics are amused by early scholars' categorizing

Modern critics are amused by early scholars' categorizing Bach's Cello Suites as artistic masterpieces.

A) scholars' categorizing Bach's Cello Suitesas

amused by scholars' categorizing .....Correct.
B) scholars' categorizing Bach's Cello Suitesas if
C)scholars, categorizing of Bach's Cello Suites as
D) scholars who categorize Bach's Cello Suites as
amused by scholars - wrong E) scholars who categorize Bach's Cello Suitesif
...

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