GMAT Sentence Correction (SC) | So poorly equipped and staffed are many State-run hospitals in India t

Is your query about option C? (Option B, D and E are easy to eliminate.)

In C the missing comma is an issue as already mentioned by tireks above, but you would not see such an error in the real test. In real GMAT an answer is not wrong only because of punctuation error - there must be some other error.

A is correct, but considerijng the above, I do not see any problem in C either.

Consider the following:
He is so sick that he could not come.... correct (same
...

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