gmat4varun wrote:
Just checking if we have anything to check for position of "And" . Before comma or after comma?
While answering this question I had in my mind that and should come after comma .
Yes, comma before 'and' or after 'and' does matter here.
Let me explain you using option A and D.
Te rule says, if we remove the phrase between two commas, the remaining sentence must make sense.
Now, do it over A.
A. conditions, and in using the set of objective criteria they derive from these analyses,
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