GMAT Sentence Correction (SC) | Emily Dickinsons letters to Susan Huntington Dickinson were

Hi All,

In the original sentence, following is the main clause:

Emily Dickinson’s letters (SUBJECT) to Susan Huntington Dickinson were written (VERB) over a period beginning a few years before Susan’s marriage to Emily’s brother and ending shortly before Emily’s death in 1886

However in answer choice E, the following is the main clause:

Emily Dickinson’s letters (SUBJECT) outnumber(VERB) her letters to anyone else.

So essentially, the emphasis in the sentence is changed from writing
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