GMAT Sentence Correction (SC) | Re: Researchers have questioned the use of costly and

I got this wrong, but I was not fully sold on the explanations for this question. Is it correct for me to say the following:

We can cross out all answer choices that have "like" because this is not a comparison but an example of something, and the proper way to structure that grammatically is with "such". Like is a comparison signal and idiomatically it would require a proper construct- "like x, as y". Also "like" is used to compare two similar logical entities
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