Knewton Challenge Discussion – GMAT Sentence Correction (Peristaltic Pumps)

This is a Sentence Correction question from SC 3, Extra Practice HW (Parallelism and Comparisons). So far, almost 45% of Knewton students have missed it. How would you approach it?

Try it out, then share your answers, questions, and thought processes in the comments below. Remember, if you’re in our GMAT class now, add your teacher name and session to your comment (e.g., Zwelling, MW 1:30).

In addition to relieving stress and building strength, certain yoga poses instigate the onset of peristaltic pulses in the small intestine, just as peristaltic pumps do, and these have a purgative effect like a laxative’s.

[A] certain yoga poses instigate the onset of peristaltic pulses in the small intestine, just as peristaltic pumps do, and these have a purgative effect like a laxative’s
[B] certain yoga poses instigate the onset of peristaltic pulses in the small intestine, like a peristaltic pump, and they have a purgative effect that is like a laxative
[C] certain yoga poses and peristaltic pumps both instigate the onset of peristaltic pulses in the small intestine, and they have a purgative effect like a laxative
[D] the onset of peristaltic pulses in the small intestine is instigated both by certain yoga poses and peristaltic pumps, and they have a purgative effect like a laxative’s
[E] the onset of peristaltic pulses in the small intestine is instigated by certain yoga poses, just as with peristaltic pumps, and these have a purgative effect like that of a laxative

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Knewton Challenge Discussion – GMAT Sentence Correction (Peristaltic Pumps)

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